CN1871655A

CN1871655A - Method and device for recording management information on optical disc write once

Info

Publication number: CN1871655A
Application number: CNA2004800308619A
Authority: CN
Inventors: 朴容彻
Original assignee: LG Electronics Inc
Current assignee: LG Electronics Inc
Priority date: 2003-09-08
Filing date: 2004-09-02
Publication date: 2006-11-29
Anticipated expiration: 2024-09-02
Also published as: CN1871657B; CN1867985B; CN1871657A; KR20050025450A; CN1867985A; CN1871655B

Abstract

A write-once optical disc and a method and apparatus for recording management information of the write-once optical disc, are provided. The method includes closing an opened session by closing all opened sequential recording-units of the opened session, opening a new session having a new sequential recording-unit, and recording session start information on the recording medium. The session start information indicates whether or not the new sequential recording-unit is a start of the new session.

Description

CD-WORM and the method and apparatus that is used for records management information on this CD-WORM

Technical field

The present invention relates to CD-WORM, be used to write down the method for the management information of this CD-WORM, and be used to write down the method and apparatus with this CD-WORM of playback.

Background technology

As a kind of optical record medium, the CD that can write down high capacity data just is widely used.In these CDs, recently developed for example novel high-density optical record medium (HD-DVD) of Blu-ray Disc and so on, be used for long record and storage high-definition video data and high quality audio data.

Blu-ray Disc is HD-DVD technology of future generation and optical recording solution of future generation, and compares with existing DVD, and it has the capacity of fabulous storage data.Recently, formulated the international standard technical specification of HD-DVD.Relevant therewith, following to rewrite Blu-ray Disc (BD-RE) standard, formulating the various standards of write-once Blu-ray Disc (BD-WO).

In these write-once Blu-ray Disc (BD-WO) standards, the management information recording method is discussed especially.This method comprises: for the recording of information method of the recording status of display disc, this state is one of characteristic of CD-WORM.But the information of the recording status of display disc permission main frame or user easily find the recording areas on the CD-WORM.For example, under CD series situation, this information is called as orbit information, and under DVD series situation, this information is called as RZone (Zone R territory) or fragment (fragment).

Therefore, be badly in need of the method for a kind of effective record corresponding to the management information of high density compact disc recording status.And this method should be provided to guarantee compatible with standardized information.In addition, need the method for management information on a kind of recording disk, can be applied to write-once high density compact disc and Blu-ray disc and be used to carry out defect management.

Summary of the invention

Therefore, the present invention relates to the method and apparatus of a kind of CD and indicator management information, relate in particular to the method and apparatus that is used for effectively managing described dish recording status information, they have fully been eliminated because the limitation of prior art and one or more problems that shortcoming causes.

An object of the present invention is to provide a kind of CD-WORM and be used to define this dish session and the method and apparatus of the type of journal scope (SRR).

Another object of the present invention is to provide a kind of SRR information (SRRI) also can be applied to this dish of write-once as the dish recording status information method and apparatus that is used to write down.

The part of other advantage of the present invention, purpose and feature will provide in the following description, and a part will be by it will be apparent to those skilled in the art that to the check of following content or by practice of the present invention is become.Purpose of the present invention and other advantage can realize by the structure that particularly points out in the instructions of being write and claims and accompanying drawing and obtain.

Should be understood that above general description of the present invention and following detailed description are exemplary and explanat and aim to provide stated of the present invention and further specify.

Description of drawings

Be contained in this and be used to provide accompanying drawing example further understanding of the present invention, that be incorporated into this part that also constitutes the application is illustrated embodiments of the invention, and explain principle of the present invention together with the description.In the accompanying drawing:

Fig. 1 shows according to the general structure of CD-WORM of the present invention and the method that is used for records management information on this CD-WORM;

Fig. 2 A to 2D illustrates the different open SRR type according to CD-WORM of the present invention;

Fig. 3 A to 3E illustrates the different SRR types of closing according to CD-WORM of the present invention;

Fig. 4 A show according to the present invention when fill empty data to CD-WORM close SRR the time fill the example of identifying information;

Fig. 4 B shows according to the present invention the example of filling identifying information when filling empty data to the open SRR of CD-WORM;

Fig. 4 C shows the example according to this dish session of write-once of the present invention;

Fig. 5 shows according to the general structure of CD-WORM of the present invention and is used to write down the method for SRRI as management information;

Fig. 6 A shows the structure that is recorded in the SRR entry tabulation among the SRRI according to the present invention;

Fig. 6 B shows the example of the SRR entry in the SRR tabulation that is recorded in Fig. 6 A according to the present invention;

Fig. 6 C illustrates the structure example according to the open SRR list of fields of SRRI of the present invention;

Fig. 7 A illustrates according to the present invention to Figure 11 B, relies on the process of the dish recording status record SRRI in the CD-WORM; And

Figure 12 illustrates according to one embodiment of the invention, is used for the record/playback apparatus of CD-WORM.

Embodiment

Now will be in detail with reference to preferred embodiment of the present invention, its example example illustrates in the accompanying drawing.In the case of any possible, running through accompanying drawing uses identical reference number to refer to identical or similar parts.

For the convenience of describing, will be that example is described with write-once Blu-ray Disc (BD-WO).Most of in this manual term all is general general term, but has the part vocabulary of being selected and being used by the inventor, subsequently will be in the description of correspondence specific definition the implication of these terms.Therefore, unless be appreciated that in instructions and limit, otherwise should not understand the present invention with the implication of the definition of these terms.

In this manual, " SRR " (journal scope) refers to the zone that is provided for data on the indicator and is the unit (journal unit) that is used for journal.SRR has one or more bunches size." SRR information " is the name of the information of identification dish recording status (SRRI).The sequential recordng mode that SRRI is applied to coil and belong to one or more SRR.The meaning of " filling (padding) " is to use empty data (dummy data) or the zero not posting field of filling in the SRR under user's request or according to the control of record/playback apparatus (Figure 12).And " session (session) " comprises one or more continuous SRR, and only is used for playback for the compatibility of standard is discerned SRR.

Fig. 1 illustrates the structure and the method that is used for indicator management information according to the CD-WORM such as BD-WO of the present invention.As example, dish shown in Figure 1 has single recording layer.But the present invention is not limited thereto, but applicable to the dish with bilayer or several record layers.

With reference to figure 1, dish comprises introduces district, data field and draw-out area, and all these zones all are positioned at recording layer.Introduce district and draw-out area and have a plurality of dishes (or defective) directorial area (DMA 1-DMA 4), be used for repeatedly storing identical defect management information.In the data field, the interior spare area ISA0 and/or the outer spare area OSA0 that are used to replace defective zone are provided.

Known CD-RW does not have or needs big DMA, because its DMA can repeatedly be write and wipe, also is like this even dish has the DMA of limited size.For really not so for the CD-WORM the BD-WO.Since CD-WORM can not be on the zone that once was recorded record again, so CD-WORM needs and has a bigger directorial area.For more efficiently management information, in CD-WORM, management information temporarily is stored in the temporary defect management area (TDMA).When dish be ready to finally finish/when closing, be stored in management information among final/last TDMA and just transfer to and be used for more permanent storage among the DMA.

As shown in Figure 1, dish comprises two types TDMA:TDMA0 and TDMA1.TDMA0 distributes to introduce the district and have fixing immutable size.TDMA1 distributes to outer spare area OSA0 and has the size that changes according to the size of spare area.For example, the big or small P of TDMA1 is P=(N * 256)/4 bunches (N is a positive integer), and be whole outer spare area OSA0 size 1/4th.

In each of TDMA0 and TDMA1, can with temporary defect list (TDFL) information and temporary disk (T-disk) definition structure (TDDS) information together (TDFL+TDDS) be recorded in the record cell (for example being bunch (cluster) under the situation of BD-WO); Perhaps can be as shown with SRRI and TDDS together (SRRI+TDDS) be recorded in the record cell.Record SRRI then uses SBM (space bit map) when using recorded at random when using journal.

During each the renewal, just in one bunch size, be recorded in the TDMA with (TDFL+TDDS) or (SRRI+TDDS).In example shown in Figure 1, TDFL and TDDS are recorded in bunch of TDMA0, and SRRI and TDDS are recorded in the next one bunch of TDMA0, and SRRI and TDDS are recorded in next again bunch of TDMA0 or the like.

If defect area in the data field, occurs, use the spare area to its process that substitutes with regard to carrying out.TDFL is the information of this process of management as defect list.Under the situation of single-layered disk, use 1 bunch to 4 bunches record TDFL according to the size of defect list.SRRI is that the specific region of notice dish is to have write down or Unrecorded information.When being the continuous recording type, dish can be extensive use of this SRRI.That is, SRRI can be effectively applied to write down with order or incremental record mode the situation of this dish.In addition, usually TDDS information is recorded in one bunch of the directorial area on last sector in 32 sectors.Be recorded a part about the information of the Routine Management of this dish and defect management as TDDS information, and last this TDDS information of record during new administration information more in TDMA always usually.

The present invention relates to be applied to such as the generation of the novel high-density CD of BD-WO and the method for recording disk recording status information.Among the present invention, use SRRI as coiling recording status information and as described in Fig. 2 A to Fig. 3 E, having defined various SRR types.Following the detailed structure of SRRI will be discussed with reference to figure 5A to Fig. 6 C.The present invention also defines and has distinguished the dissimilar SRR that forms and uses them to write down and the playback CD on dish.The following method that will describe the type that defines SRR recently in detail and create the information of the different SRR types of identification.

Fig. 2 A to 2D shows the various open SRR type that is used for CD-WORM (such as BD-WO) according to of the present invention.Open SRR be meant wherein can record data SRR.If but the SRR record, then SRR has " but next one write address " (NWA).Therefore, opening SRR is the SRR with NWA.The SRR that does not have NWA and can not write down is called as and closes SRR.Following will the description with reference to figure 3A to 3E closed SRR.

More specifically, Fig. 2 A shows one type invisible SRR as open SRR.Sightless SRR forms and refers to not recording areas in the outmost turns part or the initial blank parts of dish usually.In other words, only define the start address of invisible SRR, and the end address of invisible SRR means the end of user data.Because record data not as yet, so that " state-of-the-art record district " (LRA) has null value and this NWA is identical with the start address value of invisible SRR.

Fig. 2 B shows the imperfect SRR as the another kind of type of open SRR.Incomplete SRR is the SRR that the invisible SRR of Fig. 2 A is carried out partial record.In other words, only define the start address of imperfect SRR, and the end address of incomplete SRR means the end of user data.Yet in incomplete SRR partial record data, so but the LRA of incomplete SRR represents the up-to-date address of normal user data and the next one write address of the LRA that this NWA is and then imperfect SRR.That is to say that described NWA is a PSN of next available record bunch in the related SR R.

If this SRR of partial record in open SRR is just with reference to the relation between detailed description LRA of the filling shown in the figure 2B and the NWA.Provide Fig. 2 B point frame enlarged drawing partly in this figure bottom.

In other words, LRA be wherein physical record the zone of user data.If write down user data on some sector in comprising bunch of 32 sectors, the physical sector number (PSN) that has then write down the up-to-date sector of user data on it is exactly the LRA shown in Fig. 2 B.Yet, will be the PSN of bunch head sector subsequently so represent the NWA of extra readable area because the master record unit of Blu-ray disc is bunch.Therefore, if data are to be recorded on some sector of this bunch and record is finished (being that journal stops), fill remaining not record sector with regard to empty data used according to the invention.Use the remaining sector of not writing down of this bunch of zero padding for example.If even all write down user data on last sector of this bunch, then obviously need not above-mentioned filling and describe.

Fig. 2 C shows the empty SRR as open another type of SRR.Different with imperfect SRR with the invisible SRR of Fig. 2 A and 2B, this sky SRR is the SRR that generally is formed on the dish zone line of record data, but not is formed on the outmost turns part of dish.In other words, this is to form a SRR but as yet not in the situation of SRR identifying recording layer for main frame or user.The record not as yet because empty SRR has start address and end address, then the LRA of empty SRR has " zero " value and NWA and has the identical value of start address with this sky SRR.

Fig. 2 D shows the partial record SRR of open another type of SRR.This partial record SRR is by the SRR of partial record at empty SRR shown in Fig. 2 C.Therefore, part SRR has start address and end address.Owing to partly record data in the SRR partly writing down, but so the LRA of this partial record SRR represent the up-to-date address of normal user data and the next one write address that this NWA is and then LRA.

If in the open SRR of Fig. 2 D partial record this SRR, then Fig. 2 D point frame enlarged drawing partly just shows the relation that is relevant to filling between LRA and the NWA.Because identical, just omit detailed description to this characteristic with the description of Fig. 2 B.

Therefore with reference to figure 2A to Fig. 2 D, open SRR of the present invention can be classified as the not open SRR (Fig. 2 A and 2C) of record and the partly open SRR (Fig. 2 B and 2D) of record.Partly the open SRR of record (Fig. 2 B and 2D) can be classified as open SRR and the unfilled open SRR that fills again after LRA.

According to the present invention, the open SRR sum in the given time place CD-WORM is restricted under the predetermined value, because be difficult to a large amount of open SRR of management.For example in BD-WO of the present invention, the sum of open SRR is 16 to the maximum on the dish.Can use " open SRR tabulation " field and " open SRR number " field in the SRRI head to refer to about the position of open SRR and the information of number." open SRR tabulation " field and " open SRR number " field in the SRRI head will be discussed when in conjunction with Fig. 5 to Fig. 6 C the SRRI structure being discussed subsequently.

Fig. 3 A to 3E shows according to the difference of the CD-WORM such as BD-WO of the present invention and closes the SRR type.Close SRR be meant on it can not record data (for example user data) SRR.If SRR can not record, then this SRR does not have NWA.So closed SRR because this SRR writes down just can create fully.But both made the recording areas residue was arranged in SRR, but user/main frame also can cut out SRR by the shutdown command establishment.

More specifically, Fig. 3 A shows the empty SRR as a kind of SRR of closing.Empty SRR does not write down the Any user data and the empty SRR of opening (Fig. 2 C) that closed by shutdown command on it.Therefore, Fig. 3 A shows the empty SRR Fig. 2 C that closes and then shows open empty SRR.

Fig. 3 B shows the partial record SRR that closes SRR as another kind.The partial record SRR of Fig. 3 B does not write down any additional customer's data and the open portion record SRR shown in Fig. 2 D of being closed by shutdown command on it.Therefore, Fig. 3 B shows the partial record SRR Fig. 2 D that closes and then shows open partial record SRR.

Fig. 3 C shows the complete S RR that closes SRR as another.Complete S RR is a complete user data or by the SRR of empty data complete filling in SRR.Complete SRR only exists in closing SRR.

Fig. 3 D shows the closed portion record SRR that closes SRR as another.But the part of Fig. 3 D record SRR uses empty data to fill the SRR of LRA recording areas afterwards when closing partial record SRR open shown in Fig. 2 D.But but here can be by the LRA that be filled in this SRR as the empty data of padding data or the whole posting fields after the NWA or recording areas (for example one or more bunches) partly.In addition, when filling some zone, can write down specific character code (such as ascii character) and be used as padding data, close to indicate this SRR with the record that replaces empty data.In the case, the specific character sign indicating number as padding data can be " CLSD " that the corresponding SRR of indication closes.

Fig. 3 E shows the empty SRR that closes SRR as another.But the empty SRR of Fig. 3 E is with the LRA that specifies empty data to fill this SRR posting field and the SRR that closing subsequently afterwards when closing shown in Fig. 2 C open empty SRR.But but here can be by the LRA that be filled in this SRR as the empty data of padding data or the whole posting fields after the NWA or recording areas (for example one or more bunches) partly.In addition, when filling some zone, can write down specific character code (such as ascii character) and be used as padding data, close to indicate this SRR with the record that replaces empty data.In the case, the specific character sign indicating number as padding data can be " CLSD " that the corresponding SRR of indication closes.

If the SRR that closes of Fig. 3 D and 3E is filled into its end address by empty data fully, then Fig. 3 D and 3E's closes SRR just with identical with reference to the complete S RR of figure 3C description.In other words, in the present invention in order to determine to close the type of SRR, become when closing SRR when using shutdown command will open SRR, just definition close SRR with difference not with the residue of closing SRR with filling not the situation of recording areas (Fig. 3 A and 3B) and the band filling closing the not situation of recording areas (Fig. 3 D and 3E).

In addition in the present invention, when closing SRR, can not be with and close SRR with filling or after using specific padding data filling, close SRR.It is believed that Blu-ray disc by SRR or fill not recording areas and with the dish compatibility that only is used for playback in a series of.Record/playback apparatus (for example shown in Figure 12) can optionally be carried out padding, thereby further guarantees the design freedom of data recording/reproducing device.When the filling dish, the recording/playback of record/playback apparatus part (for example assembly 10 of Figure 12) can write down particular data automatically, makes assembly 10 receive the specific data of self-controller and can solve matter of time under the filling situation.

Fig. 4 A and 4B show according to one embodiment of the invention, for CD-WORM close SRR and open SRR when filling empty data respectively, fill the example of identification information.Can when closing open SRR, carry out filling to this open SRR.But also can carry out filling and need not to close this SRR (for example situation in Fig. 2 B and 2D) open SRR in response to order.That is to say that Fig. 4 A relates to Fig. 2 B or 2D, and Fig. 4 B relates to Fig. 3 D or 3E.

More specifically, Fig. 4 A shows for open SRR, only writes down actual user data and use empty data to fill the situation of the remaining area of this bunch on one bunch part zone.Fig. 4 A shows to be provided with and fills identification information " Padding_flag " as respective cluster inner control sign, and " Padding_flag " wherein is used to distinguish sector of wherein having write down actual user data and the sector of wherein filling empty data.Exist 32 Padding_flag separately corresponding to one in 32 sectors of this bunch.

Shown in Fig. 4 A, in this example,,, do not exist to have to fill in the indication respective sectors so the Padding_flag of these sectors is made as certain value (for example " 0b ") because sector 0 to sector 29 is the zones of wherein having write down user data.On the other hand, because sector 30 and sector 31 are the zones that are filled with padding data, all are set as such as the value of " 1b " and have filling in respective sectors with indication so be used for each Padding_flag of these sectors.

In this example, LRA represents the position (PSN) of sector 29.Therefore, video disc recording/playback reproducer can decode comprise LRA bunch, read accurately to distinguish from the sector of the empty data of this bunch filling and begin the sector of user data thereon corresponding to the Padding_flag of each sector and subsequently.

But Fig. 4 B shows under closing the situation of SRR and to use the identified region of specifying in the empty data complete filling SRR bunch.Fig. 4 B shows to be provided with and fills identification information " Padding_flag " as respective cluster inner control sign, and " Padding_flag " wherein is used to distinguish does not have the SRR that closes SRR and close with filling after filling.

Shown in Fig. 4 B, in this example because sector 0 to sector 31 is the zones by the padding data complete filling, think that all sectors are provided with Padding_flag for such as the determined value of " 1b ".The result is, video disc recording/playback reproducer can decode have above-mentioned filling identification information (Padding_flag) bunch, read corresponding to the Padding_flag of each sector and all sectors of in correct identification subsequently bunch, using empty data to fill.

In other words, Fig. 4 A relates to the filling that is used for journal on the termination dish and Fig. 4 B relates to the filling that is used to close SRR.Fig. 4 A shows all residue sectors of being filled by empty data in relevant bunch when journal stops.Each fills sign all corresponding to each sector in this bunch, and it is set to " 1b " under the situation about being filled in corresponding sector.In the situation of Fig. 4 A, be filled in each sector and occur once.In other words, under the situation of Fig. 4 B, when closing SRR, there are one or more bunches and are filled (next bunch).For a bunch of filling, fill sign corresponding to 32 of 32 sectors of this bunch and all be set to " 1b " with the filling of indication shown in Fig. 4 B bunch.

Fig. 4 C shows the session instance of CD-WORM according to an embodiment of the invention.Than the rudimentary record cell such as SRR, " session " is senior record cell and comprises at least one SRR.Can write down a plurality of sessions and this dish is called many sessions dish on the dish.Referring now to Fig. 4 C session concept of the present invention is described.

At first, can with a plurality of sessions of the present invention from the inner tracks of dish towards the external orbital direction of dish distribute and to this conversation order give session number.Even there are a plurality of sessions, the session of an opening is only arranged also on the given time dish.This open session is that its session number is the highest session in the existing session.In other words, but the session that given time forms on outer course be recording conversation and be called as open session.When end record or when receiving shutdown command, just current open session is closed to closing session.All SRR in closing session also should close to closing SRR.At this,, then from the session that will close, get rid of corresponding invisible SRR and only close remaining SRR if the session of closing comprises invisible SRR.Just the invisible SRR that gets rid of is formed as new open session subsequently.In Fig. 4 C, session #1 represents the session of closing and session #2 represents open session as an example.Session #1 comprises SRR#1 and SRR#2 and session #2 comprises SRR#3, SRR#4 and SRR#5 etc.

When closing session and closing SRR, just can after filling or not filling, close SRR as mentioned above.Whether identification is about existing the sign of filling as " Padding_flag ".When closing imperfect SRR, only close the posting field of SRR and the not posting field of SRR become the invisible SRR that forms new open session.

There is not specific buffer zone between session and contiguous another session.But in SRRI, provide " conversation start position " to indicate whether corresponding SRR is the initial of this session.When describing the SRRI structure, can describe the conversation start position in detail after a while.In addition, though there are a plurality of SRR (for example session #2 of Fig. 4 C) in the open session, all SRR of this session needn't be in open SRR and the open session as long as exist at least one open SRR just enough.In Fig. 4 C, SRR#3 among the open session #2 and #5 are open SRR and SRR#4 closes SRR.

Fig. 5 shows according to SRRI structure of the present invention and the information that is included in the SRRI to Fig. 6 C.

More specifically, Fig. 5 shows the complete structure of SRRI.SRRI belongs to one or more SRR, and provides the management information of dish recording status.In the compact disk structure of Fig. 1 and Fig. 5, SRRI is recorded in TDMA (for example, TDMA0) in.As shown in Figure 5, each SRRI 60 among the TDMA comprises three parts: head 50, the tabulation 30 of SRR entry and SRR tabulation terminal symbol 40.Head 50 is used to discern SRRI., the SRR entry each recording status of the corresponding SRR of tabulation 30 expression.SRR tabulation terminal symbol 40 is represented end or the termination of this SRRI.

Head 50 is positioned at the front portion of SRRI, and comprise " SRRI structural identifier " field 51, " open SRR tabulation " field 52, " SRR writes down item number " field 53 and " open SRR number " field 54, make and before reading the tabulation of SRR entry, just can check whole SRR entry contents.At this, " SRRI structural identifier " field 51 identification SRRI.The position of the open SRR that " open SRR tabulation " field 52 notices are associated with corresponding SRRI also will further describe with reference to figure 6C subsequently.The sum of all SRR that 53 expressions of " SRR writes down item number " field are associated with SRRI 60.The sum of the open SRR of " open SRR number " field 54 expressions.

After the SRRI head 50, the tabulation of record SRR entry (or the tabulation of SRR entry) 50 in SRRI.After last SRR entry, by the end of SRR tabulation terminal symbol 40 mark SRRI.SRR tabulation terminal symbol 40 is effective informations of the end position of the SRRI of sign correspondence when SRRI has variable-size.

Therefore, as management information, SRRI comprises head 50, the tabulation 30 of SRR entry and SRR tabulation terminal symbol 40.All these information all when upgrading by batch record.

Fig. 6 A shows the example that is recorded in the SRR entry tabulation 30 in the SRRI according to the present invention.As shown in Figure 6A, SRR entry tabulation 30 comprises one or more SRR entries 35.Each SRR entry 35 has the information of the last SRR of dish (by SRR number sign), has 8 bytes (64) sizes and represents the recording status of corresponding SRR.Each SRR entry 35 comprise the status information that is used to store corresponding SRR mode field 31 (state 1), be used to store the start address of corresponding SRR origing address field (OAF) 32, be used to store last recording address (LRA) (promptly being stored in the end address of user data in the SRR) field 34 that another mode field 33 (state 2) and being used to of the status information of corresponding SRR is stored the LRA of corresponding SRR.Usually, the start address of corresponding SRR is represented by physical sector number (PSN) in origing address field (OAF) 32.

According to an embodiment, preceding 4 highest significant positions in 64 of SRR entry 35 (position 63 to the position 60) are assigned to first mode field 31, SRR entry 35 ensuing 28 (position 59 to the position 32) is assigned to origing address field (OAF) 32, and SRR entry 35 ensuing 4 (position 31 to the position 28) is assigned to second mode field 33 and SRR entry 35 last 28 (position 27 to the position 0) is assigned to LRA field 34.

Fig. 6 B shows an example that is recorded in the SRR entry 35 of SRR entry tabulation 30 according to the present invention.State 1 field 31 is used to store the information of whether carrying out any filling in the corresponding SRR that is identified in.State 2 fields 33 are used to store whether the corresponding SRR of identification is the information of conversation start.

Shown in Fig. 6 B, in 4 of state 1

field

31,1 is that storage is used for discerning the filling identifying information " P_flag " that whether has filling.Other 3 modifications that then are preserved for any standard in 4.

Should be realized that, be recorded in filling identifying information " P_flag " in the SRR entry and be similar to filling identifying information " Padding_flag " with reference to figure 4A and Fig. 4 B description.But they have different targets.If specific SRR finally is filled, the P_flag that then P_flag is recorded in the corresponding SRR of direct representation in the SRR entry fills SRR.Therefore, optical recording/playback reproducer (Figure 12) just can check easily by check the P_flag that writes down as management information in the SRR entry whether corresponding SRR is filled.After this, the decoding of video disc recording/playback reproducer is above with reference to figure 4A and the described correspondence of 4B bunch (SRR) and read value corresponding to the Padding_flag of each sector of SRR from this bunch, makes video disc recording/playback reproducer can determine to have how many SRR to be filled after its LRA.

In the example of Fig. 6 B, first (31a) carries P_flag field 31 remainders in state 1 field 31 3 (31b) then keep.If P_flag=1b, the corresponding SRR of this expression fill SRR (promptly this SRR partially filled at least has padding data).If P_flag=0b, the corresponding SRR of this expression does not fill SRR.

Whether being assigned 4 state 2 fields 33, to carry about corresponding SRR be the information of conversation start SRR.1 of 4 bit fields 33 is carried session label information " S_flag ", and whether be used to identify corresponding SRR is the information of conversation start SRR.3 other modifications that then are preserved for any rule of field 33.In other words, S_flag is exactly above-mentioned " conversation start position ".In this example, 3 (33b) of the 1st (33a) storage S_flag field 33 remainders then keep in 4 the field 33.If S_flag=1b, the corresponding SRR of this expression is the initial SRR of session.If S_flag=0b, the corresponding SRR of this expression is not the initial SRR of session.

Reason by S_flag sign conversation start provides and the compatibility of allocation exterior domain with existing dish (such as the DVD) structure of differentiating sessions (for example, entering border (boarder-in/boarder-out), border/draw).Yet, but the overall recording capacity that the distribution of additional areas can the reduction dish.So the present invention overcomes this restriction by session label information (S_flag) is provided in SRR entry 35.Therefore, can use the session label information S_flag in the SRR entry 35 to discern the session structure of whole dish easily and need not the allocation exterior domain to store these session distinctive information.

For the present invention describes conveniently, described P_flag and S_flag as the separated position information in the separated position field that is stored in the SRR entry, but also can be stored in them in the lump in the mode field of SRR record.

The LRA field 34 of SRR entry 35 is to be used for writing down the end address information of user data of corresponding SRR and the end address of the user data (except padding data) that storage is recorded in corresponding SRR.

Fig. 6 C shows the detailed structure of " the open SRR tabulation " field 52 of SRRI among Fig. 5 according to one embodiment of the invention.Canned data is used for determining position/identifier of each exploitation SRR in the field 52.Shown in Fig. 6 C, the numbering of the one or more open SRR of record is as the positional information of open SRR in this " open SRR tabulation " field 52.Distribute open SRR number of two bytes with the specific SRR of record identification.

In the present invention, as 16 open SRR are arranged at most on the fruit tray, then use the position (sign) of the corresponding open SRR of each open SRR number record (and open SRR entry).Therefore, when being written into the CD with dish structure of the present invention, record/playback apparatus is just determined the readable region position of this dish based on open SRR information of the present invention.In other words, the position of open SRR should be known recorded information on shroud.Because it is open SRR or the information of closing SRR that the corresponding SRR of identification is not provided in the SRR entry especially, then sign/position of open SRR just is recorded in the SRRI head and can be visited easily, makes video disc recording/playback reproducer just can read more easily and the relevant SRR entry of open SRR entry that is identified.

Therefore, having only is for its SRR number that the SRR that are recorded in " open SRR tabulation " field 52 of SRRI are extra recordable as open SRR.After this, close SRR, just from " open SRR tabulation " field 52, remove this SRR that closes SRR number, thereby can distinguish open SRR easily and close SRR if open SRR becomes.

Now will be according to the present invention, a kind of method that is used to upgrade the SRRI of indicating panel recording status is described.More specifically, will the method for opening and closing SRR and session and record SRRI of filling empty data be described with reference to figure 7A to Figure 11 B.

Fig. 7 A to Figure 11 B shows in proper order according to the present invention the SRRI recording method of the dish recording status in the CD-WORM.More specifically, Fig. 7 A to Figure 11 B shows in proper order and how to create dissimilar SRR (shown in Fig. 2 A to 3E) and how to use sequential steps record SRRI according to time stream on dish.Can have the CD-WORM of SRR (such as BD-WO) to go up these methods of realization, and SRRI and dish structure will be discussed in conjunction with Fig. 1 to Fig. 6 C.

Fig. 7 A shows step 1, and the Zone Full of its mid-game all is that the part of recordable initial blank disc and thick arrow points has been indicated the NWA position.The reference position of this dish is NWA.A SRR (SRR#1) is only arranged herein, on the dish.This is the invisible SRR shown in Fig. 2 A.Therefore, session is in the original state that only has an open session #1 in the dish.This dish is that blank disc is not also as yet at disc recording SRRI.

Fig. 7 B shows step 2, and wherein data (for example, user data) have been write down on the blank disc top of Fig. 7 A, but session #1 does not close as yet.Under this state, dish only has a SRR (SRR#1), is exactly the incomplete SRR shown in Fig. 2 B.Keep session #1 as open session.Shown in Fig. 7 B, the part of records user data of incomplete session SRR#1 and use empty data fill SRR#1 (bunch) non-recorded part (for example sector).As mentioned above, the filling sector of SRR by be recorded in this bunch appointed area (for example as bunch/the filling sector of SRR#1 in) " Padding_flag=1b " indicated.

Fig. 7 C shows the process that writes down SRRI when dish is in Fig. 7 B state in the directorial area at this dish.For convenience of explanation, only show some part of Fig. 1 and all different assemblies of dish structure shown in Fig. 5 and SRRI structure.For example, though in each bunch of TDMA (such as TDMA0) of dish, write down (SRRI+TDDS) or (TDFL+TDDS) as mentioned above, in the TDMA0 of Fig. 7 C, only show SRRI, and omitted TDFL and/or TDDS for simple consideration.Only show " open SRR tabulation " field 52 and " tabulation of the SRR entry " field 30 in the SRRI different field shown in Fig. 5 in addition.

The dish recording status of Fig. 7 C is as the situation of an open SRR (SRR#1) is only arranged in all disk area among Fig. 7 B.Shown in Fig. 7 C, in as Fig. 7 B, do not close when forming imperfect SRR#1 under the situation of session, generate the SRRI#1 (60a) relevant and it is recorded in the TDMA0 with SRR#1.In SRRI#1 (60a), SRR number (SRRI#1) of open SRR#1 can be recorded in its " open SRR tabulation " field 52a.In " tabulation of SRR entry " field 30a of SRRI#1 (60a), only there be a SRR entry 35a relevant with SRR#1.SRR entry 35a (the perhaps SRR entry 35b-35p of subsequent discussion) can have the above-mentioned SRR entry structure of Fig. 6 A or 6B.

In SRR entry 35a, because finally filled some part of SRR#1, so just P_flag is changed to " 1b " status information as corresponding SRR#1.Because SRR#1 is the initial SRR of open session #1, so S_flag is changed to " 1b " status information as corresponding SRR#1.

Fig. 8 A shows and receives the also session shutdown command at execution graph 7B step 2 place therein.In response to the session shutdown command, the zone that records user data on it is divided into independently closes SRR, and new session is created in the zone after being right after the user data recording areas.For example shown in Fig. 8 A, become at the area part of the whole user data in step 2 place and to form the complete S RR#1 (SRR that closes) that closes session #1 successively.In addition, recording areas does not just become the invisible SRR#2 (open SRR) that constitutes null session #2 successively in the identical moment.

Fig. 8 B shows the recording process of the dish recording status (SRRI) that matches with Fig. 8 A plate-like attitude.Because this SRRI is second SRRI that is recorded, so with this SRRI called after SRRI#2 (60b).And then SRRI#1 (60a) writes down SRRI#2 (60b) in TDMA0.Plate-like attitude for record diagram 8A, because an open SRR (SRR#2) is only arranged in the whole disk area and a situation of closing SRR (SRR#1) is only arranged, so the information about SRR#1 and #2 of writing down respectively among SRR number of record opening SRR#2 and " tabulation of SRR entry " the field 30b at SRRI#2 in " open SRR tabulation " field 52b of SRRI#2 is as SRR entry 35b and 35c.

Indicating it with the SRR entry (for example 35b) of shadow representation in Fig. 8 B (with other accompanying drawings) is the SRR entry of closing.Therefore, because user data not as yet in the new SRR#2 that creates, just the P_flag of SRR#2 entry (35c) is set to " 0b ".Because SRR#2 is the initial SRR of open session #2, just the S_flag of SRR#2 entry (35c) is set to " 1b ".

Fig. 9 A shows and keep the step 4 that two open SRR are used for new record when dish is in Fig. 8 A condition in open session #2.Therefore, the open SRR that creates recently is open empty SRR#2 and #3 and has the NWA that is indicated by thick arrow.The result is that open session #2 comprises sky SRR#2 and #3 and invisible SRR#4.

Fig. 9 B shows the recording process of the dish recording status (SRRI) relevant with Fig. 9 A plate-like attitude.Because this SRRI is the 3rd SRRI that is recorded, so with this SRRI called after SRRI#3 (60c).Contiguous SRRI#2 (60b) writes down SRRI#3 (60c) in TDMA0.For the plate-like attitude of record diagram 9A, because the Zone Full of dish has SRR (SRR#2, the #3 of three openings, #4) with a situation of closing SRR (SRR#1), so in " open SRR tabulation " field 52c of SRRI#3 SRR number of the SRR of record opening (SRR#2, #3, #4).In " tabulation of SRR entry " field 30c of SRRI#3 record about the information of whole 4 SRR entries (SRR#1 to #4) respectively as SRR entry 35d to 35g.

Therefore, because about creating SRR#2 recently, the information of #3 and #4 is to be recorded in the SRRI#3 (60c) and as yet not at SRR#2, #3 and #4 go up user data, so the P_flag of corresponding SRR entry 35e, 35f and 35g is changed to " 1b ".But because SRR#3 and #4 are not the initial SRR of open session #2, and SRR#2 is conversation start SRR, and then the S_flag of SRR#2 entry 35e, SRR#3 entry 35f and SRR#4 entry 35g is changed to " 1b ", " 0b " and " 0b " respectively.

The step 5 of record data among empty SRR#2 that Figure 10 A shows at Fig. 9 A and the invisible SRR#4.Therefore, the first empty SRR becomes partial record SRR#2, and invisible SRR#4 then becomes imperfect SRR#4, but the second open empty SRR#3 does not change.Use is not write down SRR#2 with the user data of filling.Use the user data record and also use padding data to fill SRR#4.In the filling sector of SRR#4, Padding_flag is changed to " 1b ".

Figure 10 B shows the recording process of the dish recording status (SRRI) relevant with Figure 10 A plate-like attitude.Because this SRRI is the 4th SRRI that is recorded, so with this SRRI called after SRRI#4 (60d).And then SRRI#3 (60c) writes down SRRI#4 (60d).Dish recording status for Figure 10 A, because having three open SRR (SRR#2 to #4) and one, the Zone Full of dish closes SRR (SRR#1), so in " open SRR tabulation " field 52d of SRRI#4 (60d), write down SRR number (SRR#2 to #4) that opens SRR accordingly.In " tabulation of SRR entry " field 30d of SRRI#4 record about the information of whole 4 SRR entries (SRR#1 to #4) respectively as SRR entry 35h to 35k.

In this step, the position of SRR record item No. and open SRR is equal to the situation of Fig. 9 B.But owing to user data in specifying open SRR, this LRA information that has write down open SRR entry changes, and the value of P_flag also changes.In other words, be updated about the SRR#2 that write down and the information of #4.Because use is not write down SRR#2 with the user data of filling, so the P_flag of SRR#2 entry 35i remains " 0b ".Because use the user data record and fill SRR#4, then the P_flag of SRR#4 entry 35k becomes " 1b ".In addition, because the state of session #2 does not change, so the S_flag in the SRR entry 35h-35k just is equal to those signs of the SRR entry of Fig. 9 B.

Figure 11 A shows the step 6 that receives and carry out the session shutdown command under the plate-like attitude of Figure 10 A.The result is shown in Figure 11 A, originally is that the session #2 of open session becomes all SRR that close session #2 and session #2 and closes to become and close SRR#2-#4.More specifically, but use empty data to fill the extra recording section of open SRR and it is closed.But also use empty data to fill the whole extra recording section of open SRR and it is closed.Wish that above-mentioned is to choose situation wantonly.When carrying out above-mentioned filling, particular data (for example character code " CLSD ") can be used as padding data and carries out this filling in addition.

Before be the SRR#2 of open SRR, #3 and #4 become record SRR#2, the empty SRR#3 that closes and the complete S RR#4 that part is closed, and they form successively closes session #2.In session SRR#2 and #3, but keep extra recording areas, but it is become the SRR that closes by shutdown command.At this, optionally use empty data to fill some part.Therefore, bunch/SRR (for example Fig. 4 B) in filling can empty data all sectors all be changed to Padding_flag=1b.But even in this case, the LRA information that is recorded in the entry is still indicated the end position district of record actual user data.Empty as mentioned above data division does not influence determining of LRA position.Remaining outer course SRR#5 is the invisible SRR#5 that forms new open session #3 successively.

Figure 11 B shows the recording process of the dish recording status (SRRI) relevant with Figure 11 A plate-like attitude.Because this SRRI is the 5th SRRI that is recorded in the directorial area, so with this SRRI called after SRRI#5 (60e).And then SRRI#5 (60d) writes down SRRI#5 (60e) in TDMA0.Dish recording status for Figure 11 A, because only having an open SRR (SRR#5) and four, the Zone Full of dish closes SRR (SRR#1 to #4), so in " open SRR tabulation " field 52e of SRRI#5 SRR number of the corresponding open SRR of record (SRR#5) and from the SRR tabulation 52e of current opening, remove all SRR numbers of before having opened of being recorded in the SRRI#4 (for example the SRR#2 among Figure 10 B, #3 and #4).From " open SRR tabulation " field, remove SRR and mean that these SRR close.In " tabulation of SRR entry " field 30e of SRRI#5 record about the information of whole 5 SRR entries (SRR#1 to #5) respectively as SRR entry 351 to 35p.

Because use empty data to fill SRR#2 and #3 in response to shutdown command, filled padding data with at least a portion of indicating corresponding SRR so SRR#2 entry 35e and SRR#3 entry 35f become " 1b ".Because the LRA of SRR entry is the end position of user data physical record, so the LRA of SRR#2 value #4 is identical with the value of LRA in being previously recorded in SRRI#4 (60d).In addition, because user data on the new invisible SRR#5 that creates not as yet, so the P_flag of SRR#5 entry 35p is changed to " 0b ".Because SRR#5 is the initial SRR of new session #3, the S_flag of SRR#5 entry 35p is changed to " 1b ".

From Fig. 7 A to Figure 11 B as can be known, SRRI is the information of the current dish recording status of indication.Record/playback apparatus must check the up-to-date SRRI (for example SRRI#5 in described example) that when loading CD of the present invention, is lastly recorded in the management area but and accurately know thus comprise dish posting field/SRR position when the shroud recording status.Therefore, but just can be on dish recording desired user data in the posting field of open session.

Figure 12 shows according to video disc recording/playback reproducer of the present invention.This device or other device or system that is suitable for can be used for realizing dish and/or SRRI structure and the method in this discussion as the present invention.

Referring to Figure 12, video disc recording/playback reproducer comprises and being used for to the video disc recording data with from the recording/playback unit 10 of optical disk playback data, and the controller 20 that is used for controlling recording/playback unit 10.All elements of record/playback apparatus all are that coupling is gone up in operation.Controller 20 transmits to recording/playback unit 10 and is used for the order that the special posting field to the SRR/ session on dish writes down or therefrom reproduces.Recording/playback unit 10 reproduces data according to the order of controller 20 to the dish record data or from dish.

Industrial applicibility

Recording/playback unit 10 comprises interface unit 12, pickup unit 11, data processor 13, servo unit 14, storer 15 and microcomputer 16.Interface unit 12 and the external device communication such as controller 20.Pickup unit 11 is directly to the video disc recording data or from the optical disc replay data.The information reproduction that data processor 13 receives from pickup unit 11 recovers preferable information, and modulation is for the suitable information of CD, and the transmission signal.Servo unit 14 control pickup units 11 read from the signal of CD or with signal record in CD.Storer 15 temporary storaging datas and the various information that comprise aforesaid management information.The assembly of microcomputer 16 controlling recording/playback unit 10.Because record/playback apparatus shown in Figure 12 can optionally carry out padding, so deviser's design record/playback reproducer more freely.Recording/playback unit 10 can be stored specific data automatically in underfilling operation.

Record and back method can be divided into two classes on CD.The first kind is the situation of Fig. 4 A to Figure 11 B, the method that relates to comprises: record data intactly on open SRR, comprise LRA bunch in force and fill the residue sector, and whether record identification carries out the information of filling or determining whether to fill this bunch to the residue sector, and identification information filled in the filling record when basis is closed SRR simultaneously.

Second class is the method for closing all SRR in this session when session is closed.There is not special buffer zone between session and the contiguous session.The reference position of this session (being conversation start SRR) is by the session label information identification such as S_flag.

To describe video disc recording/back method according to an embodiment of the invention in detail now.When being written in all record/playback apparatus as shown in figure 12, just read up-to-date SRRI to CD such as BD-WO as the up-to-date management information that is recorded among the TDMA.In addition, head and the SRR entry that is recorded in the SRRI in the up-to-date SRRI is read and is stored in temporarily in the storer 15 of recording/playback unit 10.

The up-to-date dish recording status of SRRI representative of storage.Can discern open SRR by the SRRI header information.By the SRR entry, can be with data storage in the whole zone of dish or can check the not existence and the position of recording status and open session.Equally, can discern this SRR and whether be filled with padding data.All these data can both be used when record and playback CD.

Subsequently, at the open SRR identifying recording layer (for example, user data) of appointment.When data by complete documentation in open SRR the time, use empty data to fill to comprise LRA bunch in do not write down the sector reason of stable and robust (for example for) and fill identification information Padding_flag and be set to " 1b ".Each is filled the sector, all is changed to " 1b " corresponding to the Padding_flag of each sector.If do not fill the sector, just corresponding subsequently Padding_flag is set to " 0b ".Similarly, when the SRR entry in the renewal SRRI, SRR status information P_flag is set to " 1b " and has at least part to be filled to indicate corresponding SRR.

In addition, all SRR in this session are closed by the session shutdown command of controller 20 and under the situation that only corresponding SRR is closed by the session shutdown command of controller 20, but microcomputer 16 can be selected in filling or not be closed in the recording areas (for example bunch) of closing among the SRR after filling.In these cases, the designer can design record/playback reproducer 10 uses padding datas to fill SRR automatically and need not just can unconditionally to close SRR from the filling order of controller 20.Above-mentioned function can be called as recording/playback unit 10 and " fill function automatically ".This automatically fills function and record/playback apparatus 10 by filling order and receive empty data and comparing filling SRR subsequently, can advantageously shorten the padding required time.

In addition, if change the SRR state by filling as mentioned above, just fill sector Padding_flag and be set to 1b according to each.In addition, P_flag is set to 1b in corresponding SRR entry.Different record/playback apparatus also can use these information.In addition, as for the initial SRR of new open session, the S_flag in the corresponding entry is set to the reference position of 1b with the indication open session.

Therefore just provide by the SRR type of the present invention's definition and definition and according to the SRRI recording method of above-mentioned SRR type that is defined and definition.Therefore just can use various record/playback apparatus to visit and work as shroud with desired function.

The method that is used to write down CD-WORM management information according to the present invention comprises SRR type and the conversation type that definition is new.If fill open SRR or close this SRR, will make to be provided with to fill identification information Padding_flag and it is recorded in to be filled the zone by filling.Other filling identification informations of record P_flag in the SRR entry.So in CD-WORM, can write down effectively and manage to management information with new physics structure.

It should be appreciated by those skilled in the art and to make various modifications and change in the present invention.Therefore, the invention is intended to cover these modifications of the present invention and modification, as long as they are within the scope and full scope of equivalents thereof of claims.

Claims

1. method that is used for records management information on recording medium, wherein said recording medium comprises the open session of being made up of at least one journal unit, described method comprises:

Close the session of above-mentioned opening, the described step of closing comprises that all open journal unit of closing described open session are to close described open session;

Open new session with new sequences record cell; And

Recording conversation start information on described recording medium, described conversation start information have indicated whether described new journal unit is the initial of described new session.

2. the method for claim 1 is characterized in that, in described recording step, with journal unit information entry that described new journal unit is associated in the recording conversation start information.

3. method as claimed in claim 2 is characterized in that, described journal unit information entry is recorded in the temporary disk (T-disk) directorial area of described recording medium.

4. method as claimed in claim 2 is characterized in that, described conversation start information is represented by the conversation start sign.

5. the method for claim 1 is characterized in that, described step of closing open session also comprises:

At least one Unrecorded bunch of at least one open journal unit that filling will be closed, described at least one each of Unrecorded bunch all comprises a plurality of sectors; And

The filling identification information whether record has indicated filling step to carry out.

6. method as claimed in claim 5 is characterized in that, described filling identification information comprises a plurality of filling signs, and whether wherein each filling sign is all relevant with each sector, and indicated this relevant sectors to be filled.

7. the method for claim 1 is characterized in that, also comprises:

The identification number of open journal unit on the described recording medium of record in the journal unit information of described recording medium.

8. method as claimed in claim 7 is characterized in that, in described step of closing open sequential cell, removes the identification number of the journal unit of closing from described journal unit information.

9. the method for claim 1 is characterized in that, described new journal unit has start address but do not have the end address.

10. method that is used for records management information on recording medium, wherein said recording medium comprises the open session of being made up of at least one journal scope (SRR), described method comprises:

Close described open session, the described step of closing comprises that all open SRR of closing described open session are to close described open session and to fill at least one record cell not of at least one described open SRR of described open session; And

The filling identification information which unit of record indication is filled.

11. method as claimed in claim 10, it is characterized in that, whether described filling identification information comprises a plurality of filling signs of the sector of distributing at least one open SRR separately, and be filled described filling sign to be set to a particular value according to institute's allocated sector.

12. method as claimed in claim 11 is characterized in that, has 32 filling signs of 32 sectors of one bunch that correspond respectively to described SRR.

13. method as claimed in claim 10 is characterized in that, also comprises:

The identification number of all open SRR of record in the SRR information (SRRI) on described recording medium.

14. method as claimed in claim 13 is characterized in that, in closing the step of described open SRR, removes the identification number of the described SRR of closing from described SRRI.

15. method as claimed in claim 10 is characterized in that, also comprises:

Whether the specific SRR of record indication is the conversation start information of conversation start.

16. a recording medium comprises:

The open session that comprises at least one journal unit wherein when closing described open session, is closed all open journal unit of described open session;

The new session that has the new sequences record cell and after described open session is closed, be created; And

Be recorded in the conversation start information on the described recording medium, described conversation start information has indicated whether described new journal unit is the initial of described new session.

17. recording medium as claimed in claim 16 is characterized in that, described conversation start information is recorded in the journal unit information entry that is associated with described new journal unit.

18. recording medium as claimed in claim 17 is characterized in that, described journal unit information entry is to be recorded in the temporary disk (T-disk) directorial area of described recording medium.

19. recording medium as claimed in claim 17 is characterized in that, described conversation start information is represented by the conversation start sign.

20. recording medium as claimed in claim 16, it is characterized in that, when closing described open session, fill at least one open journal unit at least one Unrecorded bunch, described at least one each of Unrecorded bunch all comprises a plurality of sectors, and described recording medium also comprises the filling identification information whether the indication filling step is carried out.

21. recording medium as claimed in claim 20 is characterized in that, described filling identification information comprises a plurality of filling signs, and whether wherein each filling sign is all relevant with each sector, and indicated this relevant sectors to be filled.

22. recording medium as claimed in claim 16 is characterized in that, also comprises:

The identification number of open ended sequential record cell, described identification number are recorded in the journal unit information on the described recording medium.

23. recording medium as claimed in claim 22 is characterized in that, when closing described open session, removes the identification number of the journal unit of closing from described journal unit information.

24. recording medium as claimed in claim 16 is characterized in that, described new journal unit has start address but does not have the end address.

25. a recording medium comprises:

The open session of forming by at least one journal scope (SRR), wherein when closing described open session, close all open SRR of described open session and fill at least one record cell not of at least one described open SRR of described open session; And

The filling identification information that is recorded on the described recording medium and indicates which unit to be filled.

26. recording medium as claimed in claim 25, it is characterized in that, whether described filling identification information comprises a plurality of filling signs of the sector of distributing at least one open SRR separately, and be filled described filling sign to be set to a particular value according to institute's allocated sector.

27. recording medium as claimed in claim 26 is characterized in that, has 32 filling signs of 32 sectors of one bunch that correspond respectively to described SRR.

28. recording medium as claimed in claim 25 is characterized in that, also comprises:

The identification number of open SRR, described identification number are recorded in the SRR information (SRRI) on the described recording medium.

29. recording medium as claimed in claim 28 is characterized in that, when closing described open SRR, removes the identification number of the described SRR of closing from described SRRI.

30. recording medium as claimed in claim 25 is characterized in that, also comprises

Be recorded on the described recording medium and indicate whether specific SRR is the conversation start information of conversation start.

31. the recording medium with open session, wherein said open session comprise the one or more record cells that are used for the sequential storage user data, described recording medium comprises:

Indicating which record cell is open record cell information open and that can be used for storaging user data, and the open record cell of all of wherein said open session all is closed when closing described open session; And

The filling identification information of when closing each open record cell, indicating each open record cell whether to be filled by empty data,

Wherein said recording medium has the open record cell of an open session and maximum predetermined quantities.

32. the method for a managing recording medium, described recording medium has the open session that comprises the one or more record cells that are used for the sequential storage user data, and described method comprises:

Which record cell of record indication is an open record cell information open and that can be used for storaging user data, and the open record cell of all of wherein said open session all is closed when closing described open session; And

When closing each open record cell, the filling identification information whether each open record cell of record indication is filled by empty data,

33. a device that is used for records management information on recording medium, described recording medium comprise the open session of being made up of at least one journal unit, described device comprises:

The recoding/reproduction part, it closes this open session by all open ended sequential record cells of closing open session, open new session after closing described open session with new sequences record cell, and recording conversation start information on described recording medium, described conversation start information indicate whether described new journal unit is the initial of described new session.

34. a device that is used for records management information on recording medium, wherein said recording medium comprise the open session of being made up of at least one journal scope (SRR), described device comprises:

The recoding/reproduction part, at least one of its all open SRR by closing open session and at least one described open SRR of optionally filling described open session not record cell closing described open session, and the filling identification information that is filled of which unit of record indication.