JPH10269749A - Reproducing device of recording medium - Google Patents

Abstract

PROBLEM TO BE SOLVED: To change the accommodation position of a recording medium without performing any complex operation such as the exchange of the recording medium by changing the correspondence between the recording medium and the control information of the recording medium in terms of recording control without changing the accommodation position of the accommodated recording medium itself. SOLUTION: When the accommodation position of a CD being accommodated in a stocker is to be changed, two stokers are specified by a stocker specification button 8b and the modification of the correspondence between the stocker and the CD is specified. A control part 31 reads the correspondence relationship of the specified stocker from a control table 33, change the correspondence between a stocker number and CD information, and stores it at the control table 33 again.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording medium reproducing apparatus capable of storing a plurality of recording media and selectively reproducing a desired recording medium from the stored recording media.

[0002]

2. Description of the Related Art A plurality of recording media such as a compact disc (CD), a mini disc (MD), and a laser disc (LD) can be stored, and a desired recording medium is selectively reproduced from the stored recording media. A so-called auto-changer type reproducing apparatus is known. The recording medium storage section of such a reproducing apparatus has a stocker for individually storing each recording medium.

[0003] By designating insertion of a recording medium and specifying a stocker display to be stored, for example, a stocker number, the recording medium is inserted into the stocker of the designated number. Also, by designating the first stocker number and designating reproduction, the recording medium stored in the designated first stocker is selected and reproduced. Furthermore, by specifying the ejection of the recording medium and specifying the stocker number,
The recording medium stored in the designated numbered stocker is ejected.

There is also known a changer-type disc reproducing apparatus in which a plurality of discs are stored in a magazine, the magazine is mounted on a reproducing apparatus, and a specified disc is transported to a reproducing section for reproduction.

[0005]

In the prior art recording medium reproducing apparatus, for example, when the storage positions of two recording media are exchanged, the recording media are once discharged, a desired stocker is designated, and the storage media is stored again. ing. Such an operation is a very troublesome operation for the user. Further, in the case of a reproducing apparatus using a magazine, it is necessary to take out the magazine once and perform an operation of directly replacing the recording medium by the user. Particularly, in a reproducing apparatus used for a vehicle, a magazine is often installed in a trunk or the like, and this replacement work is very troublesome.

SUMMARY OF THE INVENTION It is an object of the present invention to change the correspondence between recording media and management information of the recording media without changing the storage position of the stored recording media itself, thereby eliminating the troublesome operation of replacing the recording media. It is another object of the present invention to provide a recording medium reproducing apparatus capable of changing the storage position of the recording medium.

[0007]

According to the present invention, a storage means capable of storing a plurality of recording media, storage means for storing management information corresponding to each of the recording media stored in the storage means, and the storage means Selecting means for selecting a designated recording medium from the plurality of recording media based on the management information of the means, and designating a change in correspondence between the plurality of recording media and the management information stored in the storage means Change designation means to be
A storage control unit for changing a correspondence between the management information stored in the storage unit and a recording medium in response to the change specification of the change specification unit, and storing the change in the storage unit again. It is a medium reproducing device. According to the present invention, when the storage position of the recording medium stored in the storage unit is to be changed, a change in the correspondence between the recording medium and the management information is designated, and the correspondence between the stored management information and the storage medium is specified. Is changed. Since the operation of reproducing the recorded content of the recording medium selected by the selecting means is performed based on the management information, it is as if the recording medium is stored without actually changing the storage position of the recording medium by the management information whose correspondence has been changed. The reproduction operation can be executed as if the position was changed. Therefore, the user does not have to perform a cumbersome operation of reloading the recording medium, and the operation for replacing the recording medium is simplified.

Further, the invention is characterized in that the change designating means designates replacement of management information corresponding to each of two recording media. According to the present invention, the management information corresponding to each of the two recording media is replaced, and the reproducing operation is performed as if the storage positions of the recording media were replaced without actually changing the storage positions of the recording media. be able to.

Further, in the present invention, the change designating means may be arranged such that the recording medium is stuffed in the smaller or larger storage number assigned to the storage means without changing the arrangement order of the stored recording media. Is characterized by specifying a change. According to the present invention, without changing the arrangement order of the stored recording media, a plurality of recording media can be managed in such a manner that the recording media are packed in the smaller or larger storage numbers assigned to the storage means in a simulated manner. The reproduction operation can be executed as if the storage position of the recording medium was changed without actually changing the storage position of the recording medium by changing the correspondence with the information.

[0010] Further, according to the present invention, the recording medium reproducing apparatus further includes a use frequency acquisition unit for obtaining a use frequency of the recording medium stored in the storage unit, and the change designating unit includes: The change is designated so that the order of use is high. According to the present invention, the correspondence between a plurality of recording media and management information is changed so that the stored recording media are used in the order of higher frequency of use,
The reproduction operation can be executed as if the storage position of the recording medium was changed without actually changing the storage position of the recording medium.

Further, according to the present invention, the use frequency acquiring means includes:
It is a timer that is obtained by cumulatively adding the reproduction time of the recording medium. According to the present invention, the reproduction time of each recording medium is cumulatively added, and the frequency of use can be obtained from the cumulative value of the reproduction time. .

[0012]

FIG. 1 is a sectional view showing a simplified structure of an autochanger device 11 according to one embodiment of the present invention. A stocker group 13 is provided in a housing 12 of the autochanger device 11, and a plurality of, for example, six CDs 14 as recording media can be stored in each of six stages of stockers. Further, the stocker group 13 can be vertically divided at an arbitrary position by the elevating / dividing mechanism 18.

The information recorded on the CD 14 is read by the PU unit 15. The PU unit 15
The gantry 16 is movable as described later.

The internal mechanism including the stocker group 13, the gantry 16, and the elevating / dividing mechanism 18 is supported by the chassis 20, and can be supported in a state where the chassis 20 is suspended from the housing 12 via the floating mechanism 17. Therefore, in the in-vehicle autochanger device 11, it is possible to reproduce the CD 14 satisfactorily even when receiving external vibration. When the reproduction of the CD 14 is not performed, the lock claw 21 is operated to move the chassis 20 to the housing 12.
Can be mechanically fixed with respect to.

When the CD 14 is not inserted or ejected, the disc insertion / ejection opening 10 can be mechanically closed by the shutter 22. The presence or absence of the CD 14 near the insertion / ejection opening 10 is detected by the CD sensor 23. The movement at the time of inserting and unloading the CD 14 is performed by the transport roller 24.

FIGS. 2 to 5 show the operation from the insertion of the CD 14 to the reproduction by the autochanger device 11 shown in FIG. In FIG. 2, a CD is inserted from the insertion / ejection port 10 in front of the housing 12.
14 illustrates a disk loading state in which the insertion roller 14 is inserted into one of the stockers 13 in the stocker group 13 while being sandwiched between the upper roller 25 and the lower roller 26 of the transport roller 24. The inserted CD 14 is inserted into one of the stockers in the stocker group 13, and is sandwiched and held from both sides.

The PU unit 15 includes a turntable 27 for rotating and driving the CD 14, a PU 28 for optically reading and reproducing information recorded on the CD 14, and a PU 28 in a radial direction of the CD 14. And a tracking mechanism 29 for moving.

FIG. 3 shows a loading state in which the PU unit 15 is inserted into the stocker group 13 in order to reproduce the CD 14 held in the designated stocker by the PU unit 15. The stocker group 13 is divided into a portion above the designated stocker and a portion below the designated stocker, and the upper portion is raised by the elevating / dividing mechanism 18 shown in FIG. When the gantry 16 is raised and the PU unit 15 is adjusted to the designated stocker height, the stocker group 13
The PU unit 15 advances into the space formed by dividing.

FIG. 4 shows the PU that has entered the stocker group 13.
The turntable 27 of the unit shows a disk clamp state in which the stocker holding the CD 14 descends, and the CD 14 can be driven to rotate to reproduce recorded information.

FIG. 5 shows that the PU unit 15 is a stocker group 1
3, after the storage state of the CD 14 held by the stocker is released, the divided portion of the stocker group 13 rises again,
This shows a playback state in which the CD 14 is reproduced by the PU unit 15.

FIG. 6 shows the arrangement of the front surface of the autochanger device 11. The disc insertion / ejection slot 10 for inserting or ejecting CDs one by one is provided in the autochanger device 1.
It is provided near the center of the first operation unit 6. As described above, six CDs can be stored in the housing 12 of the autochanger device 11 so as to be stacked in the direction perpendicular to the plate thickness direction.

A disk presence indicator 7 indicating whether or not a CD is stored in each stocker is provided for each stocker in combination with a disk insertion instruction button 8 for instructing insertion of a CD into each stocker. Have been. Each stocker is given a different display, for example, numbers 1 to 6 from the top of the stack. The disk presence indicator 7 is realized by, for example, an LED,
In the lighting state, the CD is stored.
Is empty. The ejection of the CD is performed by operating the disc ejection instruction button 9.

When the disc insertion instruction button 8 of the number corresponding to the stocker without the CD is pressed, the CD can be inserted into the stocker. A stocker that does not contain a CD is a stocker whose LED is turned off by the disk presence indicator 7, so that it can be easily selected.

After pressing the disc ejection instruction button 9,
When the disc insertion instruction button 8 of the number corresponding to the stocker containing the CD to be ejected is pressed, the CD stored in the stocker can be ejected.

Such an autochanger device 11 is
For example, it is mounted on a dashboard provided near the driver's seat of an automobile.

In the present embodiment, examples of numbers 1 to 6 will be described as different indications given to each stocker. However, each stocker is given a different symbol in addition to the number. Is also good.

FIG. 7 is a block diagram showing the electrical configuration of the autochanger device 11. As shown in FIG. In FIG. 6, C
In order to simplify the operation for inserting the D, it is explained that the CD can be inserted into the stocker by simply pressing the disc insertion instruction button 8 of the number corresponding to the stocker without the CD. However, in the following description, C
The instruction to insert D and the designation of the stocker are individually performed. Therefore, the disc insertion instruction button 8 is
The insertion instruction button 8a for instructing insertion of a CD and the stocker designation button 8b for designating a stocker will be described separately. In this embodiment, six stocker designation buttons 8b are provided.

R in which a preset program is stored
A control unit 31 implemented by including a microcomputer including an OM or the like controls the entire operation of the autochanger device 11 as a whole. The control unit 31 includes a PU unit 15, a motor unit 32, a management table 33, a processing memory 34, a reproduction time timer 35, and a CD insertion detection unit 4.
7, are electrically connected to the CD ejection detection unit 48, the designated stocker detection unit 49, and the CD replacement detection unit 51.

The PU unit 15 includes a PU unit moving motor 41 for moving the PU 28 into and out of the stocker group 13 and a CD rotation drive motor 42 for driving the turntable 27 to rotate.

The motor unit 32 has a selection motor 46 for performing an operation for selecting a stocker in the stocker group 13, and a C for inserting or ejecting the CD 14 into or out of the stocker.
A D insertion / ejection motor 43 and a lifting / lowering motor 45 that divides the stocker group 13 and raises or lowers the upper portion are included.

The CD insertion detecting section 47 detects that the connected insertion instruction button 8a has been pressed and an instruction to insert a CD has been issued. The CD ejection detection unit 48 detects that the connected ejection instruction button 9 has been pressed and the ejection of the CD has been instructed. The designated stocker detection unit 49 detects that the connected stocker designation button 8b has been pressed and a predetermined stocker has been designated. CD replacement detection unit 51
Is displayed when the exchange instruction button 50 to be connected is pressed and
It is detected that replacement or transfer of D has been instructed.

In the management table 33, management information corresponding to each of the CDs stored in the stocker is stored. For example, for the CD stored in the first stocker, the first stocker number No. 1 is given and stored. The management table 33 of the present embodiment stores numbers assigned to each stocker and stored CD information in association with each other. By referring to the management table 33, it can be determined whether a CD is stored in each stocker. The operation of reproducing the stored contents of the stored CD is performed by selecting a specified CD from a plurality of CDs based on the management information stored in the management table 33.

The processing memory 34 is used for arithmetic processing when changing the correspondence between the CD information in the management table 33 and the stocker number as management information, as described later. The management table 33 and the processing memory 34 are realized by, for example, a RAM.

The reproduction time timer 35 acquires the frequency of use of CDs stored in each stocker. In this embodiment,
The reproduction time is acquired cumulatively for each stocker. When the reproduction of the CD of each stocker is started, the timer is turned on, and time measurement is started. When the reproduction is stopped, the timer is turned off and the time measurement is stopped. In this way, the reproduction time of the CD is cumulatively added for each stocker.

FIG. 8 is a diagram showing the operation unit 6 for explaining the first embodiment of the present invention, and FIG. 9 is a diagram showing the management table 33. In the first embodiment, the management table 3 is stored without changing the storage position of the stored CD itself.
3, the correspondence between the CD and the stocker is transferred.

First, the insert instruction button 8a is pressed, the first stocker designation button 8b is pressed, and the first CD
Is stored in the first stocker, and similarly, the insertion instruction button 8a is pressed, the fourth stocker designation button 8b is pressed, and the second CD is stored in the fourth stocker.

At this time, as shown in FIG. 9A, in the management table 33a in which the CD information 62 is stored in association with each stocker number 61, the first CD (A) is added to the first stocker number. And the second CD (B) is stored corresponding to the fourth stocker number. Nothing is stored for the other stocker numbers, and is indicated by 0 in this embodiment. In the operation unit 6, referring to the management table 33a, based on the stocker number associated with the CD, the first and fourth disc presence / absence indicators 7 are turned on as shown in FIG. However, the other disk presence indicators 7 are turned off.

To transfer the storage position of the CD stored in the stocker, first, two stockers are specified, and the corresponding transfer between the CD and the stocker is specified. The control unit 31 temporarily reads out the correspondence relationship between the designated stocker and the CD from the management table 33 to the processing memory 34, transfers the correspondence relationship, and again executes the management table 3
Store it in 3.

For example, the CD stored in the first stocker
Transfer to the second stocker, the first and second
Is pressed at the same time, two stockers are designated, and the transfer of the correspondence between the CD and the stocker is designated. The designated stocker detector 49
Detects simultaneous press of two stocker designation buttons 8b. In response to the output from the designated stocker detector 49,
The control unit 31 reads the correspondence between the CD and the first and second stockers from the management table 33a,
4 temporarily. Then, the correspondence is changed so that the CD corresponds to the second stocker, and as shown in the management table 33b of FIG.
(A) is stored correspondingly. Nothing is stored for the first stocker number. After storing in the management table 33b, the contents temporarily stored in the processing table may be deleted.

In the operation unit 6, the first disk presence / absence indicator 7 is turned off, as shown in FIG. 8B, based on the stocker number associated with the transferred and stored CD. Then, the second disk presence indicator 7 lights up instead.

In this manner, the correspondence between the stocker number 61 and the CD information 62 can be changed on the management table 33 without changing the storage position of the stored CD itself. Since the operation of reproducing the recorded contents of the CD is performed according to the contents stored in the management table 33,
Without changing the storage position of the CD
The reproducing operation can be executed as if the storage position of the storage device was changed. Therefore, the user does not have to perform the troublesome operation of re-storing the CD, and the operation of transferring the CD is simplified.

Similarly, the exchange of the stocker number 61 and the CD information 62 of two stockers in which CDs are stored also belongs to the scope of the present invention.

FIG. 10 is a diagram showing the operation unit 6 for explaining the second embodiment of the present invention, and FIG. 11 is a diagram showing the management table 33. In the second embodiment, without changing the storage position of the stored CD itself, without changing the arrangement order of the stored CDs on the management table 33, the stocker numbers are pseudo-packed to smaller ones. , The correspondence between the stocker and the CD is changed.

As in the first embodiment, first, the first CD
And the second CD are stored in the first and fourth stockers. At this time, the management table 33c is stored in FIG.
FIG. 11A is similar to FIG. 11A, and FIG. 10A is similar to FIG.

In order to change the storage position of the CDs without changing the arrangement order of the stored CDs and by reducing the stocker numbers to smaller ones, first, the exchange instruction button 50 is pressed, and the CD and the stocker are pressed. A change in the correspondence with is specified. The CD replacement detection unit 51 detects that the replacement instruction button 50 has been pressed. The CD replacement detection unit 5
In response to the output from the control memory 31, the control unit 31 stores the correspondence between the CD and the stocker from the management table 33 into the processing memory 3.
4 is temporarily read, the correspondence is changed as described above, and stored in the management table 33 again.

After the change, as shown in the management table 33d of FIG.
(A) is stored correspondingly, and the CD is stored in the second stocker number.
(B) is stored correspondingly, and nothing is stored for other stocker numbers. In the operation unit 6, based on the stocker number associated with the changed and stored CD, the first and second disk presence / absence indicators 7 are turned on as shown in FIG. The other disk presence indicators 7 are turned off.

In this way, the stocker numbers can be simulated in the smaller order on the management table 33 without changing the storage position of the stored CDs themselves and without changing the arrangement order of the stored CDs. Thus, the correspondence between the stocker number 61 and the CD information 62 can be changed. Therefore, the user does not have to perform the troublesome operation of re-storing the CD, and the operation of changing the CD is simplified.

FIG. 12 is a diagram showing the operation unit 6 for explaining the third embodiment of the present invention, and FIG. 13 is a diagram showing the management table 33. In the third embodiment, without changing the storage position of the stored CDs themselves, without changing the arrangement order of the stored CDs on the management table 33, the stocker numbers are pseudo-packed to larger ones. , The correspondence between the stocker and the CD is changed.

As in the first and second embodiments, first, 1
It is assumed that the first CD and the second CD are stored in the first and fourth stockers. At this time, the management table 33e
13A similar to FIGS. 9A and 11A.
(A), and the operation unit 6 is as shown in FIG. 12 (A) similar to FIG. 8 (A) and FIG. 10 (A).

When changing the storage position of the CDs without changing the arrangement order of the stored CDs and reducing the stocker number to the larger one, first, as in the second embodiment, first, a change instruction button is pressed. 50 is pressed to change the correspondence between the CD and the stocker, and the CD replacement detection unit 51 detects that the replacement instruction button 50 has been pressed. The CD
In response to the output from the replacement detection unit 51, the control unit 31
Temporarily reads the correspondence between the CD and the stocker from the management table 33 to the processing memory 34, changes the correspondence as described above, and stores the correspondence in the management table 33 again.

After the change, as shown in the management table 33f of FIG.
(A) is stored correspondingly, and the CD is stored in the sixth stocker number.
(B) is stored correspondingly, and nothing is stored for other stocker numbers. In the operation unit 6, based on the stocker number associated with the changed and stored CD, the fifth and sixth disc presence / absence indicators 7 are turned on as shown in FIG. The other disk presence indicators 7 are turned off.

In this way, the stocker numbers can be simulated in the larger order on the management table 33 without changing the storage position of the stored CDs themselves and without changing the arrangement order of the stored CDs. Thus, the correspondence between the stocker number 61 and the CD information 62 can be changed. Therefore, the user does not have to perform the troublesome operation of re-storing the CD, and the operation of changing the CD is simplified.

FIG. 14 is a diagram showing the operation unit 6 for explaining the fourth embodiment of the present invention, and FIG. 15 is a diagram showing the management table 33. In the fourth embodiment, the stocker and the C are stored in the management table 33 in the order of frequency of use without changing the storage position of the stored CD itself.
This is to change the correspondence with D.

First, as in the first to third embodiments, it is assumed that the first CD and the second CD are stored in the first and fourth stockers. At this time, the management table 33g
FIG. 15A is the same as FIG. 9A, FIG. 11A and FIG. 13A, and the operation unit 6 is the same as FIG.
(A), FIG. 10 (A), and FIG.
4 (A).

To change the storage position of the CDs in the order of frequency of use, the exchange instruction button 50 is first pressed to specify the change of the correspondence between the CD and the stocker, as in the second and third embodiments. And the CD replacement detection unit 5
1 detects that the exchange instruction button 50 is pressed. In response to the output from the CD replacement detection unit 51, the control unit 31
The correspondence between the CD and the stocker is temporarily read from the management table 33 to the processing memory 34, and the accumulated value of the reproduction time is read from the reproduction time timer 35. Then, the correspondence is changed in the order of the longest reproduction time, and stored in the management table 33 again.

Assuming that the cumulative value of the reproduction time of the second CD is longer than that of the first CD, FIG.
As shown in the management table 33h of (B), CD (B) is stored corresponding to the first stocker number, CD (A) is stored corresponding to the second stocker number, and other stocker numbers are stored. Nothing is remembered for. Further, in the operation unit 6, based on the stocker number associated with the changed and stored CD, the first and second disk presence / absence indicators 7 are turned on as shown in FIG. The other disk presence indicators 7 are turned off.

In this manner, the correspondence between the stocker number 61 and the CD information 62 can be changed in the order of the frequency of use on the management table 33 without changing the storage position of the stored CD itself. Therefore, the user does not have to perform the troublesome operation of re-storing the CD, and the operation of changing the CD is simplified.

It is also possible to designate a specific stocker and change the correspondence between the stocker number 61 and the CD information 62 so that the stocker number is reduced to the smaller or larger one without changing the order. . Similarly, a specific stocker is designated, and the stocker number 61 and C
The correspondence with the D information 62 may be changed.

[0059]

As described above, according to the present invention, the correspondence between the recording medium and the management information can be changed in storage management without changing the storage position of the stored recording medium itself. Therefore, the user does not need to perform the troublesome operation of re-storing the recording medium, and can execute the reproducing operation as if the storage position of the recording medium were changed without actually changing the storage position of the recording medium. it can.

Further, according to the present invention, management information corresponding to each of two recording media can be replaced in storage management.

Further, according to the present invention, in storage management, a plurality of recording media are stored in such a manner that the recording media are stuffed in a pseudo manner with the smaller or larger storage number without changing the arrangement order of the stored recording media. The correspondence between the medium and the management information can be changed.

According to the present invention, the correspondence between a plurality of recording media and management information can be changed in storage management according to the frequency of use. Further, the usage frequency can be a cumulative value of the reproduction time of each recording medium.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a simplified configuration of an autochanger device 11 according to an embodiment of the present invention.

FIG. 2 is a perspective view showing a disc loading state of the autochanger device 11;

FIG. 3 is a perspective view showing a loading state of the autochanger device 11;

FIG. 4 is a perspective view showing a disk clamp state of the autochanger device 11;

FIG. 5 is a perspective view showing a playback state of the autochanger device 11;

FIG. 6 is a front view showing an arrangement state of a front surface of the autochanger device 11;

FIG. 7 is a block diagram showing an electrical configuration of the autochanger device 11;

FIG. 8 is a diagram showing an operation unit 6 for explaining the first embodiment of the present invention.

FIG. 9 is a diagram illustrating management tables 33a and 33b according to the first embodiment.

FIG. 10 is a view showing an operation unit 6 for describing a second embodiment of the present invention.

FIG. 11 illustrates management tables 33c and 33d according to the second embodiment.
FIG.

FIG. 12 is a view showing an operation unit 6 for describing a third embodiment of the present invention.

FIG. 13 illustrates management tables 33e and 33f according to the third embodiment.
FIG.

FIG. 14 is a diagram showing an operation unit 6 for explaining a fourth embodiment of the present invention.

FIG. 15 illustrates management tables 33g and 33h according to the fourth embodiment.
FIG.

[Explanation of symbols]

 Reference Signs List 6 Operation unit 7 Disk presence indicator 8, 8a Insertion instruction button 8b Stocker designation button 9 Ejection instruction button 10 Disk insertion / ejection port 11 Autochanger device 12 Housing 13 Stocker group 14 CD 15 PU unit 16 Stand 31 Control unit 33, 33a to 33h Management table 34 Processing memory 35 Reproduction time timer 47 CD insertion detection unit 48 CD ejection detection unit 49 Designated stocker detection unit 50 Replacement instruction button 51 CD replacement detection unit

Claims (5)

[Claims] A storage unit configured to store a plurality of recording media; a storage unit configured to store management information corresponding to each of the recording media stored in the storage unit; Selecting means for selecting a specified recording medium from the plurality of recording media; change specifying means for specifying a change in correspondence between the plurality of recording media and management information stored in the storage means; A storage control unit for changing the correspondence between the management information stored in the storage unit and the storage medium in response to the change specification by the specification unit, and storing the change again in the storage unit. Playback device. 2. The recording medium reproducing apparatus according to claim 1, wherein the change designation unit designates replacement of management information corresponding to each of the two recording media. 3. The change designating means, without changing the arrangement order of the stored recording media, such that the recording medium is stuffed in the pseudo smaller or larger storage number assigned to the storing device. 2. The reproducing apparatus for a recording medium according to claim 1, wherein the designation is made. 4. The recording medium reproducing apparatus further includes a use frequency acquisition unit for obtaining a use frequency of the recording medium stored in the storage unit, and the change designating unit determines whether the use frequency of the stored recording medium is high. 2. The recording medium reproducing apparatus according to claim 1, wherein the change is designated so that the order becomes higher. 5. The recording medium reproducing apparatus according to claim 4, wherein said use frequency obtaining means is a timer for accumulating and adding reproduction times of the recording medium.