MXPA98004275A - Recording/reproducing method suitable for recording/reproducing av data on/from disc, recorder and reproducer for the method, information recording disc and information processing system - Google Patents

Abstract

A method of recording an AV file which uses an information recording disc which has a plurality of sectors on/from which data are recorded/reproduced includes a step in which it is judged whether inputted data are AV data or not, a step in which defective sectors existing in allocated data recording areas are detected, a step in which, when it is judged that the inputted data are AV data and the defective sectors are detected in the data recording areas, defect extents including defective sectors are allocated, a step in which AV data are recorded on successive sectors while the defect extents are skipped, and a step in which a region where sectors on which AV data only are recorded are successively existing is allocated as one AV extent.

Description

RECORDING / REPRODUCTION METHOD, SUITABLE FOR RECORDING / PLAYING AV DATA ON / FROM DISCS, RECORDER AND PLAYER FOR THE METHOD, INFORMATION RECORDING DISC AND INFORMATION PROCESS SYSTEM TECHNICAL FIELD The present invention relates to an information recording disc, for recording digital data, including AV data, a recording method, a reproduction method and its recording apparatus, and an information processing system for them. .

PREVIOUS TECHNIQUE There are optical discs to record information, such as computer data, for example PD. This PD is an optical disk in which you can rewrite and use the phase change system and perform the recording and reproduction of data by sectors. One problem, associated with optical rewriting discs, is that the recording and reproduction of data can not be ensured for each sector, due to the dust attached to the disc, an erasure on the disc, the deterioration of the disc material itself. of repeated recording operations, or the like. Such a sector, in which the data can not be recorded / reproduced normally, is named a defective sector. Such a defective sector is typically replaced-recorded based on a linear replacement algorithm. This linear replacement algorithm is a system where a large number of spare areas, not used, are provided in a particular area on a disk, in order to replace-record the data to an appropriate sector in the reservation area, when A defective sector is detected, thus ensuring the reliability of the entrance area. In recent years, AV processing media has been improved on personal computer devices and it has become very common to enjoy audio / video titles with a personal computer device using a CD-ROM (Compact Disc-Memory Only). Reading), or the like, in which the AV data is recorded in compressed form, based on a system, such as the MPEG system. However, since the conventional optical rewrite disc and its disk drive apparatus are designed while assuming use for recording / reproducing computer data, there are several problems when recording / reproducing AV data having different characteristics of those of computer data. Typically, there is a problem that continuous video playback can not be ensured when playing AV data. This is because a defective sector detected during recording of the AV data is replaced / recorded using a conventional method of defect management, whereby the continuous reproduction of the AV data is hindered by a delay associated with access to the area. of storage, during the reproduction of data. This problem is particularly evident in the case of the linear replacement algorithm, described above. For example, when a defective sector occurs in the innermost area of the disk, while the reserve area is provided in the outermost area of the disk, the head moves from the innermost area of the disk to the external area of the disk in the access the reservation area, resulting in a search time of several hundred milliseconds. Since the reproduction of video images of 30 frames per second is required, if such a search time is generated, as long as several hundred milliseconds, the reproduced images will consequently be interrupted. A problem in recording AV data is that it is necessary to provide a variety of recording methods. For example, the AV data to be transmitted in real time by means of a diffusion wave, or the like, have to be recorded on the disc in real time. On the other hand, when high-quality AV data is to be downloaded via the Internet (interlaced networks), or the like, they are recorded asynchronously on the disc, real-time recording is not necessary, but recorded data with high reliability is required . The present invention has been made in view of the above problems and is intended to provide a method and apparatus for recording data that makes possible the real-time recording of AV data to an optical disk on which it can be rewritten and reproduced. continuous of recorded AV data, reproduction method, reproduction apparatus and its information recording disc, and an information processing system composed of them.

EXPOSITION OF THE INVENTION A recording method of the present invention is a method for recording an AV file, which includes AV data using an information recording disc, wherein the data is recorded / reproduced by sectors, the recording method includes the steps of: determining whether or not the input data is AV data; detect a defective sector that exists in the data recording area, assigned to record the input data; when it is determined that the input data is AV data and a defective sector is detected in the data recording area, assign a defective extension, which includes the defective sector; record the AV data in continuous sectors, while jumping the faulty extension; and assign an area of continuous sectors, where only the AV data is recorded as an AV extension, in which an AV file is recorded on the information recording disc, where the AV file includes: a defective extension, which includes, when a defective sector is included in the data recording area, the defective sector; and one or more AV extensions, each one includes a plurality of continuous sectors, whereby the objective described above is realized. Only one sector where a management error is detected during the data recording operation can be detected as the bad sector. The defective sector may include a sector where an address error is detected during a data recording operation and a sector where a data error is detected during a data verification operation. When an information recording disk is used, where a block of ECC (Error Correction Code) has a plurality of sectors, defective extensions can be assigned by the ECC blocks. When an information recording disk is used, where an ECC block has a plurality of sectors, the method may further include the step of assigning, in the AV file, a filler extension that does not include the AV data. The method may further include the step of recording the attribute information to identify the AV file, which includes the AV data, as part of the file management information. The method may further include the step of recording the attribute information to identify the defective extension and the AV extension, as part of the file management information, in such a format that the attribute information is in correspondence of each other. one with the respective extensions that form an AV file. A recording apparatus of the present invention is an AV data recording apparatus on an information recording disc, in which the data is recorded / reproduced by sectors, the recording apparatus includes: a section to determine whether or not the data of input are AV data; a section to detect the existence of a defective sector in the data recording area, assigned to record the input data; and a section for recording the AV data in continuous sectors, while the defective sector jumps, in which the AV data is recorded in a plurality of continuous sectors in the information recording disk, while a defective sector that exists in the area of recording of data, thus performing the objective described above. Only a sector where an address error is detected during a data recording operation can be detected as a bad sector.

The defective sector may include a sector where an address error is detected during a data recording operation, and a sector where a data error is detected during a data verification operation. When an information recording disk is used, where one block of the ECC has a plurality of sectors, the bad sectors can be skipped by the ECC blocks, each including the defective sector. An information processing system of the present invention is an information processing system that includes: the recording apparatus described above; and a control device for the recording apparatus. , this information processing system includes: a section for assigning, in the recording of an AV file, a defective sector detected by the recording apparatus as a defective extension; and a section for assigning continuous sectors where only the AV data is recorded by the recording apparatus as an AV extension, in which an AV file is recorded on the information recording disc, this AV file includes: defective extension, which includes, when there is a defective sector in the data recording area, this sector defective; and one or more AV extensions, each one including a plurality of continuous sectors, thus performing the objective described above.

When the information recording disc is used, where an ECC block has a plurality of sectors, the control device may assign the defective extension for the ECC blocks each including a defective sector. When an information recording disc is used, where an ECC block has a plurality of sectors, the control device may further include a section for assigning a fill extension that does not include AV data, as part of the AV file. The control device may further include a section for recording attribute information to identify the AV file that includes the AV data, as part of the file management information. The control device may further include a section for recording attribute information and identifying the defective extension and the AV extension, as part of the file management information, in such a format that the attribute information is in one-to-one correspondence with the respective extensions that of an AV file. The control device may include a section for adjusting in the recording apparatus an acceptable value for the total number of sectors skipped when a defective sector is detected during a recording operation for AV data; and the recording apparatus may include a section for, after the AV data has been recorded, while defective sectors are skipped within a range not exceeding the acceptable value, information from the location information control device of all skipped sectors during a recording operation of the AV data. The recording apparatus may include a section for, whenever a defective sector is detected during a recording operation for the AV data, which reports to the detection section of the defective sector together with the location information of the defective sector; and the control section may include a section for adjusting in the recording apparatus a new recording start location for AV data, each time the detection of the defective sector is reported. A reproduction method of the present invention is a method for performing data reproduction from the information recording disc in which the AV file is recorded using the recording method described above, this method includes the step of, in a AV data playback operation from the AV extension, execute a continuous operation of data reproduction, while neglecting the location information of a defective sector replaced-recorded and does not execute a recovery process, even when an error occurs during playback , thus performing the objective described above.

A reproduction apparatus of the present invention is an apparatus for reproducing data from the information recording disc, in which the AV file is recorded using the recording method described above, the apparatus includes a section for, in an operation of reproducing AV data from the AV extension, performing a continuous operation of data reproduction, while neglecting the location information of a faulty replaced-recorded sector and not executing a recovery process even when an error occurs during playback of data, thus performing the object described above. An information recording disc of the present invention is an information recording disc in which an AV file, including AV data, is recorded / reproduced by sectors, in which the AV file includes: a defective extension, the which includes, when a defective sector is included in the data recording area assigned for file recording, this sector defective; and one or more AV extensions recorded in a plurality of continuous sectors, where -only the AV data is recorded, thus performing the objective described above. Only one sector where an address error can be detected during a data recording operation is considered as the bad sector.

The defective sector may include a sector where an address error is detected during a data recording operation and a sector where a data error is detected, during a data verification operation. When an information recording disk is used, where an ECC block has a plurality of sectors, defective extensions may be assigned by blocks of the ECC. When an information recording disc is used, where an ECC block has a plurality of sectors, the AV file may include a fill extension that does not include AV data. The attribute information to identify the AV file, which includes the AV data, may also be recorded as part of the file management information. The attribute information, to identify the defective extension and AV extension, may also be recorded, as part of the file management information, in such a format that the attribute information is in correspondence of one to one with the respective extensions. that form an AV file.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a flow diagram illustrating a recording operation for AV data, according to the present invention; Figure 2 is a flow chart illustrating a recording operation for an AV file that includes the creation of the file management information; Figure 3 is a diagram illustrating a data structure of a file and file management information; Figures 4A to 4D are each diagrams illustrating a physical structure of an optical disc, such as a DVD-RAM (Digital Video Disk / Random Access Memory); Figure 5 is a diagram illustrating a structure of a volume space; Figure 6 is a diagram illustrating a physical sector structure; Figure 7 is a diagram illustrating a structure of an ECC block; Figure 8 is a diagram illustrating a directory structure; Figure 9 is a diagram illustrating how an AV file is recorded; Figure 10 is a diagram illustrating a data structure of an allocation description; Figures HA and 11B are each diagrams illustrating the interpretation of the two upper bits of an extension length included in the allocation descriptor; Figure 12 is a diagram illustrating a recording state of a disc in which an AV file and a computer file are recorded in mixed form; Figure 13 illustrates a data structure for free area management in the AV file recording; Figure 14 is a flow chart illustrating a method for reproducing an AV file; Figure 15 is a block diagram illustrating a structure of an information processing system of the present invention; Figure 16 is a diagram illustrating a protocol used between a control section and a disc-recorder unit, when recording in real-time AV data, received by means of a diffusion wave; Figure 17 is a diagram illustrating a protocol used between a control section and a disc playback unit in a playback operation for AV data recorded on an information recording disc; Figure 18 is a block diagram illustrating another structure of the information processing system of the present invention; Figure 19 is a diagram illustrating a protocol used between a control section and a disc recording unit, when the AV data received via the Internet is recorded asynchronously on an information recording disc; Figures 20A and 20B are diagrams illustrating the processes performed by a control section and a microprocessor, respectively, in the real-time recording of AV data; Figure 21 is a diagram illustrating the processes performed by a control section in the asynchronous recording of AV data; Figure 22 is a diagram illustrating an example - of a file / directory structure; Figure 23 is a diagram illustrating a data structure and the logical relationship of the primary file administration information, defined by ISO 13346; Figure 24 is a diagram illustrating a data structure for defect management used to record a computer file; Figure 25 is a diagram illustrating a data structure of the ICB tag; and Figure 26 is a diagram illustrating a data structure of flag fields included in an ICB tag.

BEST MODE FOR CARRYING OUT THE INVENTION (Mode 1) Next, an optical rewriting disc and a data recording method and its method of data re-production will be described, as an example of this invention. (1) OPTICAL DISC (1-1) PHYSICAL STRUCTURE Referring to Figures 4A through 4D, 5, 6 and 7, the physical structure of a DVD-RAM disc, which is an optical rewrite disc, will be described. Figures 4A to 4D are diagrams illustrating each the physical structure of a DVD-RAM disc. As illustrated in Figure 4A, the DVD-RAM disk includes, from its internal area, an entry guidance area, a data area and an exit guidance area. The digital data is recorded in each area and is directed in units named sectors. Figure 6 illustrates a structure of a sector. The data to be recorded in each sector is recorded optically as a record mark in the portions of crests and valleys based on a phase change recording system, and the physical address corresponding to each sector is physically recorded. like dimples in the header region. Two Kbytes of data are stored in the sector. Also, as illustrated in Figure 7, an ECC (Error Correction Code) operation is executed for each group of 16 sectors, by the provision of a parity code for the purpose of error correction. Next, such a group will be named as a block of ECC. Here, it should be noted that the rewriting information capacity is doubled by the DVD-RAM allowing the data to be written in the slot portion, as well as in the groove portion, thus being a better disk medium for recording video information. As illustrated in Figure 4B, a data area is further divided into 24 zones, numbered 0 through 23, and the data is recorded in each zone by physical sectors, each of 2048 bytes. Also, as illustrated in Figure 4B, a defect management area (DMA) is provided in the entry guidance area and in the exit guidance area, and the replacement location information of an ECC block, the which has been replaced based on the linear replacement alqorithm, will be recorded there. As illustrated in Figure 4C, each zone in the data area is composed of a user area for recording user data and a replacement region for replacing a defective sector. The logical sector numbers (LSNs) are assigned to the physical sectors in the user's areas, starting from the internal area. Thus, a vo-lumen space is formed for the data of the recording user, as illustrated in Figure 4C. Figure 5 illustrates the structure of a volume space that includes the user areas of the respective zones, in which the volume structures for the handling of the disk as a logical volume are provided respectively in the internal area and in the external area, while a division space is assigned between them, where the files are recorded by a user. In the division space, the logical block numbers (LBNs) are assigned to the respective sectors, starting from their guidance sector. (1-2) STRUCTURE OF THE FILE SYSTEM Next, with reference to Figures 3, 8, 10, HA and 11B, a file system structure of the DVD_RAM will be described. This file system is a data structure to manage data recorded by sectors such as files and directories. The filing system of this modality is in conformity with the filing system defined by the ISO / IEC standard. Figure 8 illustrates a directory structure after recording an AV file. Directory A is under the root directory, while file B and file AV are under directory A. C2, in Figure 3, illustrates a data structure of the division space, in which the files illustrated in Figure 8 are recorded. The descriptors of the space bitmap are recorded in LBS 0 to 79. The descriptors of the map of space bits each have a space bitmap that indicates whether each sector is assignable or not. When the operation ip (x) represents the integral portion of x, while the operation rem (a, b) represents a-bxip (a / b), the sector allocation information of a sector in the LBNs is recorded in the bit rem (s, 8 in the ip byte (s / 8) in the space bitmap When the value of the bit is 1, the sector has not been assigned, while 0 means assigned. bits corresponding to the sectors not assigned in LBNs 84 to 583, 586 to 3584 and 3888 at the end, are set to 1. A file setting descriptor is recorded in LBN 80. In the case of a directory file entry root, the location information is recorded in the file adjustment descriptor A terminator descriptor is recorded in LBN 81. The terminator descriptor indicates the end of the file adjustment descriptor A file entry is recorded in LBN 82.

Since ISO 13346 accommodates a rewrite disk, just like a read-only disk, the recording location of the file is stored and directed into the named information by a file entry. In a file entry, some particular attribute information is recorded to the file and the recording location of the file. In a directory, the file names of the files included in the directory and the location information of the file entries are recorded. A file entry indicates the recording address of a file that exists in the division space by an assignment descriptor field. C6 illustrates the structure of the field entry. A descriptor tag is provided to identify a descriptor, such as a space bitmap descriptor. In the case of a file entry, 261 is described as the descriptor tag, which indicates a file entry. An ICB tag is to indicate the attribute information related to the file entry itself. Figure 25 is a diagram illustrating the structure of an ICB tag, while Figure 26 is a diagram illustrating the structure of the flag fields of the ICB tag. In Figure 25, there is a 2-byte flag field in RBP 18 on the ICB label. In Figure 26, a flag indicates whether the file is an AV file or is not assigned to the ninth bit in the flag field. When an AV file is identified from this flag, the AV data is recorded in the group of sectors that make up the file. Extended attributes are for describing attribute information at a level more advanced than the level defined by the attribute information field in the file entry. The assignment descriptor is for the management of an area that includes continuous sectors as an extension. As illustrated in Figure 10, the assignment descriptor has the extension length and its location information. Figure HA illustrates the interpretation of the two upper bits of the extension length included in the allocation descriptor of a non-AV file. It is thus possible to indicate if the extension has been assigned or not and if it has been recorded or not. Figure 11B illustrates the interpretation of the two upper bits of the extension length included in the allocation descriptor of an AV file. It is thus possible to indicate whether the extension is an extension of AV, a defective extension or a fill extension. Next, as a supplementary description, an operation of the apparatus of the disk reproduction unit to acquire a sector address that stores a desired file will be described.

Figure 22 illustrates an example of a file / directory structure. An ellipse represents a directory while a rectangle represents a file. In this example, one directory, DVD_VIDEO, and two files, Filel.DAT and File2.DAT, exist under the root directory. The DVD_VIDEO directory also includes a total of three files. Moviel.VOB, Movie2.V0B and M? VÍe3.V0B. Figure 23 illustrates the logical relationship of the data in the file management information based on the ISO 13346 standard. Since the ISO 13346 standard accommodates a rewrite disk, just like a read-only disk, the recording location of the file is stored and handled in the information named a file entry. For example, the recording location of the file entry for the Moviel.VOB AV file is stored as a file identifier descriptor in the directory file DVD_VTDE0. The recording location of the file entry for the directory file of DVD_VIDEO is stored as a descriptor of the file identifier in the file of the ROOT directory. Also, the recording location of the file entry of the ROOT directory is stored in a file adjustment descriptor. Similarly, the file adjustment descriptor is recorded in a predetermined location as a part of the file management information. With such a structure, the recording location of the target file can be acquired by first referring to the file adjustment descriptor and then following the file entries that start from the ROOT directory, according to the directory structure. A directory file has a plurality of identifier descriptors, and each file identifier descriptor includes the recording address and file name of the file entry of the file or directory handled by the directory. (1-3) METHOD 1 OF DEFECTIVE SECTOR ADMINISTRATION: FOR COMPUTER DATA When computer data is recorded in the DVD-RAM, described above, the linear replacement algorithm is used as a method of defect management. In the linear replacement algorithm, computer data is recorded first in the user's area. When a defective sector is detected during the recording operation, detecting an address error, a verification error, or similar, an ECC block including the defective sector is recorded in an exception area, illustrated in Figure 4C , while the location information of the replaced ECC block is recorded as the defect handling information in the defect management area (DMA), provided in the entry guidance area and in the exit guidance area.

Figure 24 illustrates the data structure of the defect management area. As illustrated in Figure 24, this defect management area includes a disk definition sector and a defect list. The disk definition sector stores the location information of the defect list. This list of defects includes a defects entry that has pairs of guidance addresses (address A and address C) of the EC blocks, each including a defective sector, and chia addresses (address B and D address) of others ECC blocks, respectively, that replace the ECC blocks. Such a defective sector is detected when the disc is formatted, when data is recorded on the disc, or the like. The example illustrated in Figure 24 shows that the ECC block starting from address A in the data area is replaced by the ECC block starting from address B, while the ECC block starting from address C is replaced by the ECC block. ECC block starting from address D. Thus, in the linear replacement algorithm, defective sectors are handled in a mill integrated by the defect management information recorded in the defect management area. (1-4) METHOD 2 OF DEFECTIVE SECTOR ADMINISTRATION: FOR AV DATA Next, the delineation of the defect management method, which is a feature of the present invention and is used when recording AV data on the DVD- will be described below. RAM described above. Here, AV data refers to, for example, data that includes a sound or video compressed by MPEG. For example, when a defective sector, for which the address can not be reproduced, is detected during an AV data recording operation, the ECC block, which includes the defective sector, is skipped, and the data is recorded from the beginning of the next ECC block. The recording location of the ECC block, which includes the bad sector, is recorded in the file entry as an assignment descriptor. Also, when a large number of defective sectors are detected in the recording operation of the AV file, the location information of the bad sectors is recorded in the file entry by the AV file using separate allocation descriptors. Thus, such defect management method is different from the conventional linear replacement method, in that the location information of the replaced ECC block is never recorded in the defect management area provided in the entry guidance area or in the the exit guidance area. Also, in the operation of reproducing AV files, since the AV data is reproduced while jumping bad sectors with reference to the allocation descriptors in the file entry, the disc playback unit is capable of playing AV data. while jumping the defective sectors without managing the addresses of the defective sectors. (2) DATA RECORDING METHOD Next, a method for recording AV data to the DVD-RAM described above will be described. Figure 1 is a flow chart illustrating a recording operation for AV data, according to the present invention. First, it is determined whether the input data is AV data or not (Al stage). This determination is based on the type of command sent from the host, the mode in which the data is transferred from the guest, or the like. For example, when the rite_AV command is sent to record AV data, it will be determined to be AV data, while being determined to be normal computer data when the normal Write command is sent. When the file management information is recorded and the computer data includes code data, they are recorded based on the conventional linear replacement algorithm, while the bad sectors are checked (stage A2).

In the case of AV data, it is further determined (step A3) whether the data is AV data, which requires real time recording, such as those sent from a digital video film, digital broadcast, or the like, or the data AV that can be recorded asynchronously while ensuring its reliability, such as data downloaded from the Internet. For example, when the synchronous mode is set as the data transfer mode from the host computer to the recording apparatus, it is determined to be a real time recording, while it is determined to be a non-real time recording when the asynchronous mode. Alternatively, it can be determined will be a real-time recording when the data is transferred from a digital video movie, or the like, based on the type of equipment connected to the recording apparatus, while it can be determined will be a non-real time recording, when the data is transferred from a network work team, such as that used on the Internet. In the recording operation for the AV data, which requires real time recording, when an address error is detected from the target sector, the ECC block that includes the sector is skipped, and the data is recorded from the sector of guide in the next ECC block (steps A4 to A6). By recording the data while skipping the ECC blocks, which include bad sectors, as described above, it is possible to continue the data recording operation without executing any search operation, even if a defective sector is detected, unlike the recording replacement for computer data, as illustrated in Figure 4C. In the recording operation for the AV data for which the asynchronous recording is applied, while ensuring its reliability, when a defective sector, which has an address error, is detected during the recording of data, the block ECC including the defective sector is skipped, and the data is recorded from the guidance sector in the next ECC block (steps A7 to A9), as described above. Then, the recorded data is read and verified. If a defective sector, which includes a data error, is detected, the recorded data is recorded in the next ECC block (steps A10 to A12). By performing such data recording operation, a defective sector is reliably detected, while it can be recorded in the next ECC block, rather than in a reservation area, whereby a video or a sound can be played in uninterrupted form . When the data recording is completed for a continuous area, which was previously specified by a command, or the like, the data recording is resumed by the next continuous area (steps A13 and A14).

To simply illustrate the data recording operation for the DVD-RAM disc, in which an EC block is composed of a plurality of sectors, it is assumed in the above description that the entire ECC block, which includes a defective sector , it is skipped. However, it is clear that it is possible to similarly perform a data recording method in which only the defective sector is skipped, rather than the entire ECC block. Likewise, the defective sector is skipped by sectors, also in the case where the ECC block has the same size as that of the sector. C3, in Figure 3, illustrates the data structure of the disk, in which an AV file is recorded by the recording method described above. Next, the data structure will be described with reference to Figure 9, which is described by C2 and C3 of Figure 3 in detail. A first continuous area of LBN, 592 to 3567, and a second continuous area in LBN 3888 at the end, both unassigned, are previously specified as recording areas for the AV file, so that recording is done from the beginning of the ECC block. When recording AV data that requires real-time recording, the AV data recording is performed first from the guidance sector in the first continuous area. Then, an address error is detected from the sector in LBN 1600, whereby the ECC block (16 sectors), which includes this de-fectful sector, is skipped, and the AV data is recorded in the second column. ECC block, starting at LBN 1616. Following completion of the data recording operation for the first continuous area, a data recording operation for the second continuous area, starting at LBN 3888, is performed. When recording AV data for which asynchronous recording is applied, while ensuring its reliability, if a data error is detected from the sector in LBN 1600, the ECC block that includes the defective sector is skipped and the AV data they are recorded in the next ECC block, as described above. Thus, real-time recording and asynchronous recording both use the same data structure, since the AV data is recorded while skipping a block of ECC, which includes a defective sector in both cases. Therefore, when AV data is played, the defective extension S is skipped, while only the AV extensions of A, B and C are read in the same way. Even if there are discretely unassigned areas on the disc, uninterrupted playback of a video or sound is ensured during the reproduction of AV data, while a quantity of data more than a predetermined amount can be recorded in each of the areas unassigned, while the distance between unassigned areas is in a range that allows access of areas within a predetermined amount of time. This is because the AV data read from the disc by the disc playing apparatus, is reproduced after being temporarily stored in a track buffer, or the like. In other words, since the AV data stored in the temporary memory is reproduced during an access operation between continuous areas, the continuous playback of a video or a sound is maintained even if the disc data playback is temporarily discontinued. Next, reference is made to Figure 2, where a method for creating and recording the file management information for the AV file will be described, in accordance with the present invention. First, it is determined whether the file to be recorded is an AV file or not. This determination is based on, for example, the extension of the file name or the attribute of the file, provided by an application program, a user, or the like (step Bl). In the case of file management information, such as a directory file or a data file for computers, a file recording operation and a file management information record are performed are based on the conventional file system of ISO 13346 (stage B2). When the file to be recorded is an AV file, a continuous free area of 5 MB or more is searched by the ECC blocks, based on the contents of the space bitmap (step B3). For example, in C4 of Figure 3, the continuous area in LBN 592 to 3567 and the continuous area in LBN 3888 at the end, are searched as the continuous free area. Next, based on the recording method, described above with reference to Figure 1, the AV data is recorded to the bus-free area, while skipping the bad sectors (step B4). In order to manage the location information where the AV data is recorded, the location information of an area in which only AV data is recorded is recorded as an extension of AV, the location information of a jumped ECC block. it is registered as a defective extension, and the location information of an area in the terminal portion of the file, where filler data is recorded to complete the ECC block, is recorded as a filler extension, respectively in the file management information. -vo (stage B5). In C3 of Figure 3, the extensions A, B and C are each an area where the AV data is recorded, the extension S is an area, which has been skipped due to a defective sector detected there, and the extension E is the area in the portion terminal of the file where the filler data is recorded. The respective extensions are recorded, as illustrated in C7, as separate assignment descriptors in the file entry (C6) of the AV file. Then the attribute information is recorded in the file entry, in which an AV attribute bit is adjusted, indicating that the recorded file is an AV file (step B6). In C6 of Figure 3, the AV attribute bit is set as a contiguous bit defined in the ICB tag. Finally, in order to adjust the area where the AV file is recorded as assigned, the bits corresponding to the extensions A, S, B, C and E in the space bitmap are set to 0, indicating the allocation ( Step B7) For example, in C5 of Figure 3, the bits of bit 7 in byte 73 to bit 7 in bit 445 and the bits from bit 0 in byte 486 to bit 7 in byte 799, are adjusted at 0. By providing such a data structure, it is determined whether the reproduced file is an AV file or not, the file attribute information shown in Figure 26. Then, if the file is an AV file, the reproduction operation it can be executed only by using the location information of the AV extension registered in the file entry, while bypassing the defect management information in the defect management area. In the data reproduction operation, extension S and extension E are not used, since AV data is not recorded there. Next, with reference to Figure 12, the data structure of a disk, in which a computer file and an AV file are recorded in mixed form, will be described. If the sector in LBN 3586, which is assigned to record file B, a computer file, is a defective sector, the ECC block (LBNs 3584 to 3599), which include the defective sector are recorded in an area of reservation, and defect management information is recorded in the defect management area. Therefore, since replacement recording is performed by the ECC blocks, the file entry of file B and a portion of file A are recorded simultaneously in the reservation area. If the A file is an AV file and a portion of the AV data included in the AV file is recorded in the included AV file it is recorded in the same ECC block, where a computer file is recorded, then the AV data will also be recorded in the reservation area. In order for AV data and computer data not to be recorded in mixed form in an ECC block, an AV file is assigned to align with an EC blog boundary, as illustrated in Figure 12. , each AV file starts from the guidance sector in the ECC block, and the bad sectors are skipped by the ECC blocks, while a fill extension that is filled with fill data, is assigned to each sector, where the AV data is not recorded, so the AV file assignment is composed at the end of the ECC block. By providing such a data structure, a continuous playback operation for the AV data is secured without access to any reservation area.

Next, referring to Figure 13, an example of a method for handling free areas in an AV file recording will be described. As described above with reference to Figure 9, a free area for recording an AV file is first searched. Then, the first continuous area in LBNs 592 to 3567 and the second continuous area in LBN 3888 until the end, are assigned as the free area. Subsequently, a reserved file is created by recording a file entry in which these free areas are handled as assigned and extensions are not recorded. At the same time, the area in which the file entry is recorded and the assigned continuous areas are recorded in the space bitmap as assigned. An AV file is recorded, by the method described above with reference to Figure 1, from the beginning of the assigned extension that was previously registered in the reserved AV file. When these free areas are assigned as areas for recording the reserved AV file, in advance of the AV data recording, even if a recording operation for an AV file and a recording operation for a computer file is performed in parallel in a multi-tasking environment, the computer file is assigned to an unassigned retentive area, whereby it is possible to prevent AV data and data from a computer file from being erroneously assigned in the same block of ECC. (3) METHOD OF DATA REPRODUCTION Next, a method for reproducing an AV file, according to the present invention, together with a reproduction operation for the file management information will be described. Figure 14 is a flow diagram illustrating a method for reproducing an AV file. First, the AV attribute bit is read from the file entry of a file to be played (DI stage). The AV attribute bit is included in the ICB tag, as illustrated in C6 of Figure 3. As described above, the AV attribute bit is a contiguous bit described in Figure 26 and is attribute information to determine yes or not it is an AV file. This bit being 1 indicates an AV file, while when it is 0 it indicates a non-AV file, such as a computer file. Based on the value of the AV attribute bit, it is determined whether or not the file is an AV file (step D2). Next, if the file is a computer file, it is read by the conventional method for computer files (stage D3). On the other hand, in the case of an AV file, a field of the assignment descriptor registered in the file entry of the AV file is read, and the location information of the respective AV extensions included in the AV file is read. read in sequence (stage D4). Also, the playback apparatus is instructed to read the AV data from each AV extension (step D5). Here, the playback apparatus continuously reads only AV data from the AV extensions, while bypassing the replacement sector information recorded in the defect list on the disk and while performing a non-recovery operation, even when an error occurs. address or a data error is detected during a playback operation (step D6). Finally, it is determined if the AV data has been reproduced from all the AV extensions included in the AV file (step D7). Then, if there is an AV extension not reproduced, steps D5 and D6 are repeated again. By performing such a playback operation, the AV file that has been recorded by the method of Figure 1 is played continuously, while the video or sound is not interrupted. Although the recording / reproducing operations of the present invention have been described with a DVD-RAM disc, it is evident that similar recording / reproducing operations can be performed with, for example, a magnetic disk or a magneto-optical disk, in both a recording medium with large capacity in which an AV file can be recorded. To simply illustrate the data recording operation for the DVD-RAM disk in which an ECC block is composed of a plurality of sectors, it is assumed in the above description that the entire ECC block including a defective sector is skipped. However, it is clear that it is possible to similarly execute a data reproduction method in which only the defective sector, rather than the entire ECC block, is skipped. Also, this defective sector is skipped by sectors also in the case where the ECC block has the same size as that of the sector. Although the present invention has been described while it is assumed that the extent of VA, defective extent and fill extent are each identified using a portion of an assignment descriptor, described in Figure 11B, it is evident that the identification The extension attribute is not limited to such attribute information and may be assigned to another descriptor, another bit or the like. For example, it is also possible to define a data structure of a new allocation descriptor and to provide a field indicating the extension attribute information. The extension of fill is not limited to that provided in the terminal portion of a file. For example, when the size of the AV extension is reduced while an AV file is being edited, the area on the AV extension at which the AV data is no longer recorded can be registered as a new fill extension. In such a case, the fill extension is assigned in a guide portion or an intermediate portion of the file. In the above description of the present invention, an area including a defective sector detected during a recording operation for an AV file is recorded as a defective extension. Another method is possible, for example, to define a special file to manage a faulty extension and its file attribute information, in order to allocate and manage a file that consists only of faulty extensions. Although a space bitmap has been used as information for the managed areas not assigned to the disk in the previous description, it can also be managed using a space table. Although the present invention has been described while assuming the size of a continuous free area allocated to record an AV file, of 5 MB or greater, it is obvious that the size may differ, depending on the capacity of the buffer memory, the performance of access, or similar, of the reproduction apparatus.

Although a reserved AV file is registered to allocate a continuous free area for recording an AV file in the above description of the present invention, it is also possible to previously assign a continuous free area using a new bitmap, a table or the like . When reproducing the AV data from AV extensions by the reproduction method of the present invention, it is obvious that continuous data reproduction can be performed more reliably if the re-production apparatus reads ahead of the AV data while storing these. AV data in a cache memory during playback.

(Mode 2) Next, an information processing system, including a recording / playback apparatus, for recording / reproducing data to / from the DVD-RAM disk, mentioned above, and a control device for controlling the same, will be described in Modality 2 of the Present invention. Figure 15 is a block diagram illustrating a structure of the information processing system of the present invention. Rl denotes a control section; R2 denotes an MPEG encoder; R3 denotes a disk recording / playback unit; R4 denotes an MPEG decoder, R5 denotes a video signal processing section; R6 denotes a hard disk drive; R7 denotes an input / output manifold; R8 denotes an entry section; R9 denotes a phase change of optical disc type rewriting; and RIO denotes a receiver. The control section Rl includes a Central Processing Unit (CPU) Ria, a main memory Rid, a collector interface Rlc and a processor collector Rlb. Based on a program stored in the main Rid memory, the Rl control section performs an AV file identification process, a read location indication process, a search process of the recording area, a process to calculate the acceptable number of jumps and a file system information creation process, as illustrated in Figure 20A. The disk recording / playback unit R3 includes: a microprocessor R3d to control the entire unit; a collector control circuit R3a, for controlling the transmission / reception of a command or data from / to the control section R1, by means of an IDE collector (Intelligent Unit Electronic Element); a data recording / reproducing / checking section R3a for reproducing data, including recording and data verification operations to the optical disc R9 of the phase change type; a buffer section R3b for temporarily storing recording data, reproduction data and read data for data verification; and a buffer control section R3c for controlling the data transfer of the buffer section. The microprocessor R3d performs a jump recording control operation, as illustrated in Figure 20B. The R9 optical disc of phase change type is the DVD-RAM disc described above in Mode 1. Next, the operation of recording the AV data received by the RIO receiver by means of diffusion waves to the optical disk R9 of phase change type, will be described with. Reference to Figure 16. Here, it is assumed that the file system information recorded on the optical disc R9 of phase change type, has already been read and stored in the main memory Rid in the control section. The Figure < 16 illustrates a protocol used between the control section R1 and the disk recording unit R3 in an operation for recording AV data, which is a moving image information received by the RIO receiver by means of a diffusion wave, to the disk R9 optical of phase change type.

(P101) The search process of the recording area by the control section Rl selects a continuous free area for recording an AV file, with reference to the file system information that is read and stored previously in the main memory Rid, when the R9 optical disc of phase change type is mounted. In the process for calculating the acceptable number of hops, the number of ECC blocks that can be skipped by the disk recording unit R3 is calculated from the file system information. (P102 to P103) The Rl control section issues "SKIP WRITE AV (ADR, LEN, SKIP_LEN) "as a command to record the AV data, while jumping the ECC block, which includes the defective sector detected by the recording unit R. In this case, the parameter ADT denotes the starting address of the recording of data; LEN denotes the number of blocks to be recorded, and SKIP_LEN denotes the maximum value for the number of ECC blocks to be skipped (then named as the "acceptable number of jumps"). When the "SKIP RITE AV" is received, the disc recording unit R3 starts a recording operation for the transferred AV data. (P104) When a defective sector, which has an address error is detected, while the R3 unit of disk recording is recording the AV data, the ECC block that includes the defective sector is considered as a block of defect ECC, then the starting address of the ECC block is stored internally, and the data recording operation is performed following ECC block. (P105) When the disk recording unit R3 detects a defective ECC block, and this defect ECC block is correspondingly skipped, if the preset acceptable number of jumps is exceeded, the recording unit R3 of disk stops the data recording operation, while reporting an error status to the control section Rl and returns the detailed error information (Upper Jump Sector) to the control section Rl, which indicates that the acceptable number of jumps is exceeded. On the other hand, when all the AV data has been recorded without performing a skip operation, the disk recording unit R3 returns to a normal termination state to the control section Rl. Also, when all the AV data has been recorded with skip operations within the specified acceptable number of jumps, the disk recording unit R3 returns to the control section Rl of the detailed error information (Retrieved Error), which indicates that the recording has been made with jump operations, within the jump sector number, together with the error status. (P106) When the detailed error information is received, indicating the Retrieved Error, the control section Rl issues a "SEND SKIPPED SECTOR" command, which requests the address information of the jumped ECC blocks. . (P107) The address information of all the defect ECC blocks, which have been stored during the recording operation, are transferred to the control section Rl, when the disk recording unit R3 receives the command "SEND SKIPPED SECTOR" " Next, the reproduction operation for an AV file recorded on the phase change type optical disc R9 will be described with reference to Figure 17. Figure 17 illustrates the protocol used between the control section Rl and the R3 unit of disc playback in an operation to play the recorded AV data on the R9 optical disc of phase change type. (P201) The control section Rl determines, from the file system information, that the requested file to be read is an AV file. (P202) The control section Rl issues a "READ AV" command, which requests the reading of AV data from the AV extensions included in the AV file. (P203 to P204) When the "READ AV" command is received, the disc playback unit R3 continuously executes a data reproduction operation without reference to the defect list, and the data reproduction operation continues even when a data reproduction occurs. address error or a data error. Then, the disc reproduction unit R3 transfers the reproduced data to the control section Rl. (P205) The control section Rl transfers in sequence the read data to the MPEG decoder, R4, thus producing an analog AV signal by means of a monitor display and a speaker. (P206) The disk reproduction unit R3 transfers a normal termination state to the control section Rl. In accordance with the present modality, even if a defective sector is detected during a data recording operation, the data is recorded in the next EC block, while the ECC block that includes the defective sector jumps, so it is possible to record the data in real time of AV received by a broadcast wave, which requires a real-time recording. Also, in the operation of data reproduction, access to the reservation area is not necessary as in the linear replacement algorithm; therefore it is possible to ensure the continuous reproduction of video or sound. In the present modality, when a different file is recorded following the area assigned to record an AV file, in order to prevent the area, where the next file is recorded, from being overwritten by AV data, the recording unit of disc is allowed to jump blocks of ECC within the acceptable number of jumps. However, in the case where an invalid file is recorded in the following area, it is not necessary to limit the acceptable number of jumps or calculate the acceptable number of jumps. Although in the present embodiment, the number of ECC blocks allowed to be skipped during a recording operation for AV data is adjusted in the disc recording unit R3, the present invention is not limited to such a method. For example, it is apparent that, by previously adjusting the terminal address of the area where the AV data can be recorded, the disk recording unit R3 is capable of performing the recording operation while jumping the ECC blocks within the area to the terminal address , thus obtaining the effect of the present invention.

(Mode 3) Next, an information processing system, including a recording / playback apparatus for recording / reproducing data to / from the DVD-RAM disk described above, and a control device for controlling the same will be described. , as Modality 3 of the present invention. The difference between Modality 2 above is that AV data comes through. the Internet (interlaced networks), rather than a diffusion wave. Therefore, the recorded real time is not performed, however the most reliable asynchronous recording is performed. Figure 18 is a block diagram illustrating a structure of the information processing system of the present invention. NI denotes a control section; N2 denotes a network card; N3 denotes a disk recording / reproducing unit; N4 denotes an MPEG decoder; N5 denotes a video signal processing section; N6 denotes a hard drive; N7 denotes an input / output collector; N8 denotes an entry section; N9 denotes an optical disk of rewriting phase change type; NIO denotes the Internet; and Nll denotes a network server. The structure of the control section NI is identical to that of the control section Rl, illustrated in Figure 15. The control section NI operates based on a program stored in a main memory Nld, which performs a process of AV file identification, a read location indication process, a recording area search process, a recording control process, and a file system information creation process, as illustrated in Figure 21. The structure of the disk recording / reproducing unit N3 is identical to that of the disk recording / reproducing unit R3 of FIG. 15. The phase-change type optical disk N9 is the DVD-RAM disk, described above in the Mode 1. Next, a recording operation to the optical disc N9 of phase change type will be described, by a network card N2, the AV data transferred from the network server Nll via Internet NIO, with reference to Figure 18. It is assumed that the file system information on the phase change optical disk N9 has been read and stored in the main memory Nld of the NI control section. The N2 network card connects to the Internet NIO, thus receiving the data sent from the Nll network server. Figure 19 illustrates a protocol used between the control section NI and the disk recording unit N3 in an operation to asynchronously record the AV data received via the Internet NIO to the optical disk N9 of the phase change type. (P301) The search process of the recording area by the NI control section selects a continuous free area to record an AV file with reference to the file system information that has been previously read. (P302) The process of recording control by the NI control section, emits a "WRITE & VERIFY AV (ADR2, LEN2)" command, which requests to record the AV data to the selected area in (P301). Here, the ADR parameter denotes the starting address of the data recording; and LEN denotes the number of blocks to be recorded. The "RITE & AV VERIFY" command (WRITE AND VERIFY AV) requires to bypass the defect list and return the error status and address information of the defective sector without performing a replacement operation when a defective sector is detected during the recording operation. (P303) The recording control process by the control section NI transfers to the disk recording unit N3 the AV data to be recorded in the "WRITE AV" command. (P304 to P306) The disk recording unit N3 continuously records AV data in the specified area without reference to the defect list. When a defective sector having an address error, a data error or the like is detected during the recording operation for the AV data, the disk recording unit N3 does not perform a replacement operation, but stops the recording operation , and returns the error status and the address information of the defective sector to the NI control section. (P307) The control section NI stores the address information of the defective sector in the main memory Nld. (P308 to P309) The recording control process by the NI control section issues a "WRITE &; VERIFY AV (ADR3, LEN3) ", while the ECC block that follows the ECC block that includes the defective sector as the starting address, based on the address information stored in (P308), in order to resubmit un-recorded data (including the data to be recorded in the ECC block including the bad sector) to the disk recording unit N3. (P310 to P311) The disk recording unit N3 continuously records AV data in the specified area without referring to the defect list based on the newly adjusted starting address When the specified data recording operation is completed without an error, the disk recording unit N3 returns to a normal termination state to the NI section In advance of the recording operation for the AV data described above with reference to Figure 19, the NI control section issues a command "READ (ADR1, LEN1)" (READ (ADR1, LEN1) to request reading the in formation of the file system to refer to the free areas in the optical disc N9 of type phase change. Here, the "READ" command requests to read a number of blocks as specified by LEN, starting from the sector that has the address specified by the first ADR parameter, while performing a replacement operation using the defect list. When the "READ" command is received, the disk recording unit N3 reads the specified file system information referred to the defect list. Thus, when there is a defective block in the area where the file system information is recorded, data reproduction is performed by an ECC unit from an alternate block assigned in a reservation area. The disk recording unit N3 transfers the file system information read from the phase change type N9 optical disc to the NI control section. After completing the recording operation for the AV data, described above with reference to. Figure 19, the process of creating the file system information by the NI control section registers the ECC block that includes the defective sector stored in (P307), as a faulty extension and continuous areas where the AV data of the AV file are recorded as an AV extension. Also, in the space bitmap, the bits to manage the respective sectors in the area, where the defective extension and AV extension are allocated, are recorded as assigned. The process of creating file system information by the NI control section requires, by a command "RITE & VERIFY (ADR4, LEN4)", the disk recording unit N3 to record the file system information updated by the process of creating information from the file system. Here, the "WRITE & VERIFY" command is a command to verify that the data can be reproduced under a more severe condition than that for normal playback after completing the data recording operation. The command requires, when a defective sector is detected in both the recording process and the verification process, to register it in the defect list and perform a replacement process. When there is an ECC block that includes a defective sector already detected in the specific recording area, it is required to record the ECC block in the replacement destination and perform a verification operation for the recorded ECC block. Then, the disk recording unit N3 performs the specified data recording and verification processes, while controlling the recording / verification section N3e of data with reference to the defect list. After the "WRITE & VERIFY" command is normally processed, the disk recording unit N3 returns to the normal termination state to the NI control section. The recording operation for an AV file has been described so far. The description of the playback operation for the AV file is omitted, since it is the same as that of Modality 2. As described above, according to the present embodiment, the recorded sector is tested after the AV data has been recorded, in order to improve the reliability of the data. recorded, for which it is possible to ensure the uninterrupted reproduction of the video or sound during the reproduction of data, while ensuring the same reliability of the data as that ensured by the conventional method of recording. A combination of a control mainly by the disk recording unit (Figure 16) and a structure of the analog video reception section and the MPEG encoder (Figure 15) has been described in Mode 2, while a combination of a control , mainly for the control section (for example, a personal computer) (Figure 19) and a structure of the digital interface and the digital video recovery section (Figure 18) has been described in Mode 3. However, the present invention is not limited to such a particular system structure. The control, mainly for the disk recording unit (Figure 16), can be combined with the structure of the digital interface and the digital video recovery section (Figure 18), while the control, mainly for the control section (Figure 18). for example, a personal computer) (Figure 19) can be combined with the structure of the analog video reception section and the MPEG encoder (Figure 15).

INDUSTRIAL APPLICABILITY In accordance with the present invention, even if a defective sector is detected while recording AV data, the following ECC block data is recorded while skipping the ECC block, which includes the bad sector. Thus, an access to the reservation area is not required at all, for which it is possible to record AV data in real time to an information recording disc and continuously play the AV data recorded on the information recording disc. Also, in accordance with the present invention, it is possible to verify whether or not the AV data recorded on the information recording disc have been properly recorded. Thus, it is possible to ensure the uninterrupted reproduction of a video or a sound during the reproduction of data, while ensuring the same reliability of the data as that ensured by the conventional method of recording.

Claims (27)

1. CLAIMS 1. A recording method, for recording information management of files and data that includes AV data, on an information recording disc, in which the file management information is for managing continuous sectors as an extension and to further manage one or more extensions as a file, grouping one or more extensions, this recording method comprises the steps of: determining whether or not the input data is AV data; determine whether or not a defective sector is included in the data recording area, assigned to record the input data; When it is determined that the input data is AV data and it is determined that the defective sector is included in the data recording area, jump at least the defective sector and record the AV data in one or more continuous sectors, immediately after jumping one or more sectors; and recording the recorded AV data file in the file management information, the AV data file recorded in the file management information, includes one or more continuous sectors, where the AV data is recorded as an AV extension and in addition it includes jumping one or more sectors as a faulty extension.
2. 2. A recording method, according to claim 1, wherein the defective sector is a sector where an address error is detected, during the data recording operation.
3. 3. A recording method, according to claim 1, wherein the defective sector comprises a sector where an address error is detected during a data recording operation and a sector where a data error is detected, during the verification operation of data.
4. 4. A recording method, according to claim 1, wherein the one or more skipped sectors comprise a plurality of sectors forming one or more blocks of the Error Correction Code (ECC).
5. 5. A recording method, according to claim 1, wherein the file of the AV data recorded in the file management information includes one or more continuous sectors from one end of the AV extension to a limit of the ECC block , as a re-full extension.
6. 6. A recording method, according to claim 1, further comprising the step of recording the identification information, to identify a file which includes the AV data in the file management information.
7. 7. A recording method, according to claim 1, further comprising the step of recording the identification information, to identify the defective extension and the AV extension in the file management information.
8. 8. A system for the information process, this system comprises: a recording device, for recording information management of files and data, including AV data, on an information recording disc, in which the file management information is to handle continuous sectors, such as an extension, and to also manage one or more extensions as a file, grouping one or more of these extensions; and a control device, for controlling the recording apparatus, this recording apparatus comprises: a section for determining whether or not the input data is AV data; a section to determine whether or not a defective sector is included in the data recording area, assigned to record the input data; and a section for, when it is determined that the input data is AV data and it is determined that a defective sector is included in the data recording area, jump at least the defective sector and record the AV data in one or more continuous sectors following the jump of one or more sectors, the control device comprises: a section for recording the recorded AV data file in the file management information, in which the AV data file, recorded in the administration information of files, is a file that includes one or more continuous sectors, where the AV data is recorded as an extension of AV and also includes skipping one or more sectors as a faulty extension.
9. 9. A system for the information process, according to claim 8, wherein the defective sector is a sector where a direction error was detected during a data recording operation.
10. 10. A system for the information process, according to claim 8, wherein the defective sector comprises a sector where an address error was detected during a data recording operation, and a sector where a data error was detected during a data recording operation. data verification operation.
11. 11. A system for the information process, according to claim 8, wherein said one or more skipped sectors comprise a plurality of sectors, forming one or more blocks of the Error Correction Code (ECC).
12. 12. A system for the information process, according to claim 8, wherein the file of the AV data recorded in the file management information includes one or more continuous sectors from one end of the AV extension to a block boundary of ECC, as a fill extension.
13. 13. A system for the information process, according to claim 8, wherein the control device further comprises a section for recording the identification information to identify a file which includes the AV data in the file management information.
14. 14. A system for the information process, according to claim 8, wherein the control device further comprises a section for recording the identification information, for identifying the defective extension and the AV extension in the file management information.
15. 15. A system for the information process, according to claim 8, wherein: the control device further comprises a section for establishing a maximum acceptable value for a number of sectors, which can be skipped by the recording apparatus; the recording apparatus further comprises a section for skipping one or more continuous sectors, including the defective sector, within a range not exceeding the maximum acceptable value, and supplying the control device with the information indicating the locations of the one or more sectors skipped.
16. 16. A system for the information process, according to claim 8, wherein: the recording apparatus further comprises a section for supplying the control device with the information indicating a location of a defective sector, each time a detection is detected. defective sector, during a data recording operation; and the control device further comprises a section for establishing in the recording apparatus a recording start location for the AV data, based on the information indicating the location of the defective sector reported by the recording apparatus.
17. 17. A reproduction method, for reproducing data from the information recording disc, on which the AV data was recorded, using the recording method according to claim 1, this reproducing method comprises the step of reproducing the AV data from the AV extension, without reference to the location information of the defective sector.
18. 18. A reproduction apparatus, for reproducing data from the information recording disc, on which the AV data was recorded, which uses the recording method according to claim 1, this reproduction apparatus includes a section for the reproduction of data AV from the AV extension, without reference to the location information of the defective sector.
19. 19. An information recording disk, over which the file management information and the data, including AV data, are recorded, in which this file management information is for managing continuous sectors, such as an extension and for managing in addition one or more extensions as a file, grouping one or more of these extensions, in that: when the input data is AV data, while a defective sector is included in the data recording area, assigned to record the input data , AV data is recorded in one or more continuous sectors, which follow the skipped sector, which includes the defective sector; and a file, which includes one or more continuous sectors, where the AV data is recorded as an AV extension, while including the sector skipped as a faulty extension, is recorded in the file management information.
20. 20. An information recording disk, according to claim 19, in which the defstuous sestor is a sector where an error of resolution is detected during a data recording operation.
21. 21. An information recording disc, according to claim 19, wherein the defective sector comprises a sector where an address error is detected during a data recording operation and a sector where a data error is detected, during an operation check.
22. 22. A record of information recording, according to the claim is the claim 19, in which the one or more skipped sifted somes a plurality of sestores, forming one or more blocks of ECC.
23. 23. An information recording disc, according to claim 19, wherein the AV data file recorded in the file management information includes one or more continuous sectors from one end of the AV extension to an ECC block limit , as a fill extension.
24. 24. An information recording disk, according to claim 19, in which the identification information, to identify a file, which includes the AV data, is also recorded in the file management information.
25. 25. An information recording disk, according to claim 19, in which the identification information to identify the defective extension and the extension of AV is further recorded in the arshivos administration information.
26. 26. A recording method, according to claim 1, further comprising the steps of: before recording the AV data to the information recording disc, detecting one or more continuous sectors in which AV data can be recorded; and recording in the file management information an AV recording file, which includes one or more continuous sectors detected as an unrecorded extension, in that: the AV data is recorded in one or more of the continuous sectors assigned by the extension without recording from the AV recording file.
27. 27. An information processing system, according to claim 8, further comprising: a section for, before recording AV data to the information recording disk, detecting one or more continuous sectors, in which the AV data is they are going to record; And a section for recording in the file management information, an AV recording file, which includes the one or more continuous sectors detected, such as an unrecorded extension, in which: the AV data is recorded in one or more of the Continuous sectors, assigned to the non-recorded extension of the AV recording file.