JP2002170325A - Digital audio equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve the problem that the operation of selecting a desired music among 100 or more musics is troublesome because the 100 or more music are recorded in the case of recording audio data of an MP3 format on a CD-R, etc. SOLUTION: In the case of recording on the CD-R, etc., recording is performed in the file format of a virtual CD changer capable of preliminarily loading a virtualized information file of each of respective musics, a virtual CD disk obtained by selecting and collecting optional tunes among the respective music and further a large amount of these virtual CD disks. In such a case, a different external identifier is given to a virtual disk and a virtual CD changer in particular, and consecutive numbers are automatically attached to the exter identifiers. Thus, each tune is recorded on any of the virtual CDs, and these virtual CDs area recorded as a file configuration of a format to be loaded to any virtual CD changer. In the case of reproducing the audio data, this recording format is reproduced and a user performs a music selection operation on a screen where many CDs and a plurality of CD changers are displayed as if they exist.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a digital audio apparatus in which audio data is recorded in various compression systems, and more particularly to a conventional disk changer for reproducing a large amount of data recorded on a CD-R or the like in the MP3 system. The present invention relates to a digital audio device that can be operated with the same feeling as an audio device.

[0002]

2. Description of the Related Art Audio equipment records analog data on a conventional record or cassette tape, and records the digital data on a CD, MD, DVD, memory chip, or the like from a device that outputs the analog signal. Has been shifted to digital audio equipment that performs digital data processing and playback. Among them, in recent years, MPEG Aud
A method of compressing and recording audio data in an io Layer-3 (hereinafter, referred to as “MP3”) format has become widespread.

[0003] In this MP3, audio data can be compressed to approximately one-tenth of a CD with almost the same quality as a CD, so that approximately 11 times as much audio data as a CD that can store 650 MB can be recorded. For this reason, it is possible to record more than 100 songs on a single CD in the case of a normal song.
-RW (hereinafter referred to as "CD-R etc."), each individual puts a large number of CD songs into one CD, and MP3 compatible C
Playback on a D player is also performed. Also, without using a disk such as a CD-R, audio data is compressed and recorded in the MP3 format using a memory made of a semiconductor chip, which has rapidly become large and inexpensive in recent years. One CD
Has been developed, and a player capable of handling very small and large-capacity audio data has been developed.

[0004] Various MP3 creation software can be used to create the above MP3 data.
In addition to converting AVE or MIDI format data to MP3 data, there are also those that can directly convert CDs to MP3 data. As a result, one piece of CD data can be directly converted to an MP3 data file at high speed, and its storage destination is often recorded on a hard disk of a personal computer whose capacity has been rapidly increased in recent years. MP3 data recorded in a large amount in this manner is a CD-R
For example, it is often used to play back and listen to a CD player having a function of reproducing MP3 data.

[0005] In an audio player capable of reproducing a CD-R or the like in which such audio data compressed in the MP3 format is recorded, in the case of a normal song, 100 or more songs can be recorded as described above. However, when this disc is played on an MP3-compatible CD player, the audio player often plays the music in order from the music found by the player, and therefore usually puts the music on this CD. Playback is performed in the recording order. Also, there is an audio player compatible with MPEG3, which can be played at random because it is tired to always play music in the same order. In addition, when skipping to the next music piece or returning to the previous music piece during the reproduction, the same operation as that of a conventional CD is performed.

[0006]

As described above, if each individual records a large number of songs on a single CD-R or the like, the CD
Regarding the file structure such as -R, all songs are recorded at the same level immediately below the root directory. Therefore, even if there are many artists' songs and songs of various genres in the recorded audio data,
When recording on a D-R or the like, the data is recorded in the recording order as described above and in the order in which the files are rearranged in a predetermined order in the file list on the hard disk.
Etc. are not recorded by artist or genre, and various songs are appropriately reproduced.

[0007] As a countermeasure, it is considered that a specific artist or a specific genre is collected in one folder as a file structure, so that songs of the same artist or the same genre are arranged and recorded on a CD-R or the like. Have been. However, even if an artist or genre is selected in this way, since the artist or genre is played back in the recording order or the like in the artist or genre in the same manner as described above, for example, the user can select a favorite according to his / her preference It is not possible to select only the songs or play them in the order of preference.

In particular, when the MP3 compatible audio player is mounted on a vehicle, the user is often a driver, and the operation of checking and selecting the display of the artist or genre on the display is dangerous. Yes, not preferred. In particular, users of conventional audio devices for vehicles have:
In many cases, the user is not accustomed to the creation and operation of file holders in the above-described personal computer format, the operation at the time of reproduction, and the selection. In addition, scrolling the screen as described above to see in detail what kind of artist's song is recorded, or what kind of genre's song is recorded, etc., has a limited display size. However, it is difficult and dangerous for a driver who pays attention to safe driving in such a vehicle audio apparatus, and particularly, it is difficult and dangerous to select a song by looking at such a file configuration.

The problems described above are not specific to audio data compressed by the MP3 system, but include Dolby Digital (AC-3) currently used, TwinVQ and SoundVQ proposed by various companies. Exactly the same problem occurs in the use of audio data compressed by various methods.

Therefore, according to the present invention, a large number of songs recorded on one audio data recording medium can be selected and played back with the same feeling as the operation of a conventional audio device, and only desired music can be selected. It is an object of the present invention to provide a digital audio device which can be selectively listened to.

[0011]

According to the present invention, there is provided a digital audio apparatus for reproducing an audio recording medium in which digital audio data is compressed and recorded, wherein the digital audio data is stored in one recording medium. Recorded in the form of an audio device having a plurality of virtual disks and a plurality of virtual disk changers, wherein the digital audio device comprises the audio recording medium, the plurality of virtual disks and a plurality of virtual disk changers. A digital audio device comprising: display means for displaying in the form of an audio device, and reproduction means for reproducing in accordance with a user's operation instruction by the display.

Further, in another digital audio apparatus according to the present invention, the virtual disk and the virtual disk changer have different extensions and are assigned serial numbers.

In another digital audio device according to the present invention, the digital audio data is
When additional recording is performed on an audio recording medium, the previously recorded audio data is data in which a virtual disk or a virtual disk changer is recorded so as to be distinguishable.

In another digital audio apparatus according to the present invention, the means for recording the digital audio data includes displaying at least a virtual disk and a virtual disk changer, and transferring the audio data to each display unit by operating the data. Is to be recorded.

In another digital audio device according to the present invention, the format for compressing and recording the digital audio data is the MP3 format.

In another digital audio device according to the present invention, the audio recording medium is a CD-R.
Alternatively, it is a CD-RW.

In another digital audio device according to the present invention, the digital audio device is mounted on a vehicle.

[0018]

Embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows a CD-ROM in MP3 format according to the present invention.
R shows an audio player for reproducing a recording medium in which a large number of songs are recorded on the R or the like.
FIG. 2 is a functional block diagram mainly showing functional parts capable of performing a reproducing operation in the form of a D disk and a virtual CD disk changer, and also shows a functional block diagram showing the interrelation of each functional block.

In FIG. 1, a CD-R 1 created by compressing and recording audio data in the MP3 format using a CD-R or the like by a CD-R or the like is applied to a player 2, rotated by a motor 3, and The RF data recorded by the optical pickup 4 moving on the axis in the radiation direction is read out. The motor 3 and the optical pickup 4 are controlled by a servo driver 10 for inputting a signal of a system controller 11 for controlling the entire audio disc player, and start and stop of reproduction, and various data of an arbitrary portion of the CD 1 are recorded. Reading or the like can be performed.

A signal from the optical pickup 4 is amplified by an RF amplifier 5, and an MP3 system decoder capable of separating and decoding file information 7 of recorded music and audio data 8 as described later from the MP3 data. Enter 6 The operation of the MP3 system decoder 6 is controlled by a system controller 9, and the decoded audio data 8 is output from an audio signal output unit 11 in the same manner as in a conventional apparatus, and various signal processings are performed in a conventional manner. The output is made from a speaker (not shown).

The file information 7 obtained by the MP3 system decoder 6 is output to a virtual file forming unit 12, and based on the input file information, the virtual file forming unit 12 generates a virtual Information file 13, a virtual CD disk 14 assuming that each of these songs is recorded, and a virtual CD changer 15 assuming that a plurality of these CDs are stored.
And files. Figure 3 shows the file structure.
And a file as shown in FIG. 4 is formed.

That is, the file in the present invention can be formed by a personal computer using software for displaying an operation screen as shown in FIG. 3, for example. FIG. 3 shows an example of software for producing a virtual CD and a virtual CD changer on the screen of a personal computer. The screen on the right side of the figure shows, for example, an MP3 format collected by a specific file on a hard disk of the personal computer by various means. This is a part for displaying audio data. By specifying such a specific file, an MP3 data file list as shown in the figure is displayed. In this file, for example, several hundred MP3 songs are recorded, and work can be performed efficiently only with the data of this file. However, when MP3 songs are dispersedly recorded in many files, the screen is displayed. Clicking "Explorer" on the upper toolbar displays the Explorer screen, and by specifying files in which MP3 audio data is collected, the songs of these files are displayed on this list screen. You can also do so.

In the MP3 data file list, in this embodiment, song names and artist names are displayed in the order in which they are filed. When these songs are recorded on a hard disk or the like, the MP3 format audio data is displayed. An extension of “mp3” indicating data is attached, and a file name indicating a specific song is represented as “artist name / song name.mp3” as a whole.
Accordingly, in the MP3 data file list of FIG. The song title indicated as “1” is “First L
ove "and the song by artist" Hikaru Utada "
"Utada hikaru / first love.
mp3 ". The following songs are also recorded in the same file name format. The MP3 file name can be up to 30 one-byte characters and 15 two-byte characters. Various naming is possible. When the MP3 player supports kanji, the file name using kanji is also used.

In the example shown in FIG. 1, a screen for making a virtual CD / CD changer is arranged on the left side of the figure.
As shown in the operation method at the top of this screen, the virtual file used in the present invention is formed by copying the music on the right list screen to a desired CD or CD changer on the left screen. ing. In the example of this figure, whether to perform the operation of “production” of the virtual CD / CD changer at the top of the file production screen or the operation of “confirmation / end” indicating that the production operation is confirmed and completed. This is a part for inputting an operation, and it is shown that the operation is currently being performed by clicking on the “production” part. Also, a new CD or CD as “(new) CD changer” and “(new) CD”
It has an input section for creating a changer, and its field is C
It also shows that it is a display field of D changer and CD.

FIG. 3 shows a state in which a large number of virtual CDs / CD changers have already been manufactured. The first state is as shown in FIG. 4A, for example. That is, the MP3 data file list on the right list screen is the same as that shown in FIG. 1, and neither a CD changer nor a CD has been produced on the left screen. In this figure, in this state, No. of the right list screen is displayed. The user instructs to copy the song name "First Love" and the artist "Hikaru Utada", which is the first song, to the left screen, thereby performing the current operation as indicated by the hatched box in the bold frame on the right screen. Specify the fields that are In this state,
An instruction cursor for selecting the copy destination is displayed on the left screen, and thereafter, the operation of the instruction cursor is performed. In the state shown in FIG. 9A, the pointing cursor points to the input section of "(new) CD changer", indicating that copying is to be performed on this section.

By clicking on the "(new) CD changer" portion, a No. as shown in FIG.
No. 1 is displayed at the same time as the CD changer mark of No. 1 is displayed. The CD mark of No. 1 is displayed, and No. 1 is displayed in the “Recording song” column on the right side. As 1, the song name and the artist name on the right screen that instructed the copy are displayed. In this manner, the copy operation of the first tune is performed at the same time as the copy instruction is given to the “(new) CD” input section, as indicated by the thin-line instruction cursor in FIG. A virtual CD changer is also created, and the same input is performed after all.

Next, as shown in FIG. 2B, on the right list screen, No. Instructed to copy the song title "Koi no Dance Site" and the artist "Morning Musume" to the left screen, and on the left screen, the instruction cursor indicated "(New) CD". ing. By performing a click in this state, the currently displayed No. is displayed. No. 1 to be inserted into the virtual CD changer of No. 1
Two virtual CDs are created. As a result, no. The virtual CD of No. 2 is No. 2 as shown in FIG. No. 1 in the virtual CD changer 1 A display to be inserted together with one virtual CD is made. At this time, an instruction is given to "(new) CD changer" with the instruction cursor, and when the instruction is clicked, the No. No. 2 virtual CD changer is newly created and displayed. 1 virtual CD is created and its N
o. This song is input as one song.

In this manner, the songs on the right list screen are sequentially put into a virtual CD that has already been created, or into any one of the virtual CDs in any of the existing virtual CD changers. Work is proceeded while selecting whether to insert or create a new virtual CD changer, create a virtual CD to be inserted therein, and insert it into it. FIG. 3 shows a state in which the work is progressing in this manner. 1
No. 9 on the left screen. No. 1 to be inserted into the virtual CD changer of No. 1 7 virtual CDs,
No. in that This indicates that the user intends to insert the song as one song.

In FIG. Two virtual CD changers are prepared, and a number of virtual CDs inserted into them
The following screen is scroll-displayed by operating a scroll bar on the right side in the figure. Similarly, the screen following the right list screen is scroll-displayed by operating the scroll bar on the right side in the figure. In FIG. 1
The virtual CD changer of No. accommodates many virtual CDs of Japanese artists. 2 shows an example in which the virtual CD changer is divided so as to store a large number of virtual CDs of foreign artists.

In this manner, the file editing can be performed on any song displayed on the right list screen as if a new CD is being created, and a plurality of arbitrary CDs are loaded into the CD changer. It can be carried out. As mentioned above, on the list screen on the right, after pasting all the necessary songs from the specific file into the screen on the left, if necessary, click "Explorer" at the top of the screen. To display the explorer screen, open the file containing the song you want to paste further in it, display it on this list screen, and continue the work by performing the same operation as above Can be. This work is terminated when the capacity of the CD-R or the like in which the MP3 audio data is to be recorded has been reached, or when it is determined that the current time is to be ended even if the capacity is still sufficient.

At this time, by clicking on the "confirmation / end" input section displayed at the top of the left screen,
A small screen display of "Confirmation" is displayed, and the CD-R
It is confirmed whether or not to perform the production of the above. By clicking this, the production of a CD-R or the like is started.

In the data processing for actually producing a CD-R or the like after the above operation is completed, in the present invention, the extension is changed, an extension corresponding to the number of the virtual CD is assigned, and the virtual CD changer is changed. Extensions corresponding to the numbers are given. Various methods are conceivable for such a change and addition of the extension. For example, the extension can be provided as shown in FIG.

That is, when a virtual CD changer, a virtual CD, and a file composition of a virtual tune recorded in the virtual CD changer as shown on the left screen of FIG. In the example shown in FIG. In the first song, "uta
da hikaru / first love. mp3 "
Is changed to "apn" for only its extension. That is, as shown in FIG.
Song name. The file name of “mp3” is changed to MP3 virtualization information of “artist name / song name.apn”.
At this time, any extension that is not normally used can be selected as the extension. For example, an extension related to the name of the manufacturer of the CD-R playback device is selected.

In the illustrated embodiment, a file name and extension of “alpine.vd?” Are given to the virtual disk. Here, a serial number from number 1 is assigned to the part of the extension “?”. Therefore, N shown in FIG.
o. The virtual disk of “alpine.
vd1 ”, and this virtual disk has No. in the list of MP3 virtualization information shown on the left side of FIG. 1 to N
o. No. 70 among the 70 songs 1,10,11,17,2
A virtual CD that contains a total of 8, 28, 38, and 45 songs
Has become a disk. Similarly, No. The virtual CD of No. 2 is “alpine.vd2”, and similarly in the illustrated example, No. Up to 15 virtual disks have been created.

The "alpine" of the file name of the virtual disk in the above-described embodiment is obtained by selecting a name associated with the manufacturer, and any other name can be selected. If necessary, a file name such as “j-pop” which is convenient for identifying the contents common to each CD may be added. The extension “vd?” Means “virtual disk No.?”, And an appropriate extension can also be selected for this part. In the screen display shown in FIG. No. 2 is assigned to the first virtual CD in the virtual CD changer of No. 2. Although "1" is assigned, when the "confirmation / end" operation is performed, all numbers are internally set to serial numbers, and the numbers are written in "?" Portions.

Further, the virtual CD changer is given a file name and extension of "alpine.vc?" In the illustrated embodiment. Also in this case, a serial number starting from No. 1 is assigned to the “?” Part of the extension. Therefore, No. 3 shown in FIG. Figure 1 shows the virtual CD changer.
In the virtual disk changer, “alpine.vc1” is assigned as “alpine.vc1”. 1 to No. N out of 15 virtual CDs
o. In this state, a total of seven virtual CDs 1 to 7 are stored. Similarly, No. 2 virtual CD changer is "a
lpine. vc2 ”, and similarly in the example shown in FIG. Up to three virtual CD changers have been produced. It should be noted that various names can be used for the "alpine" of the file name of the virtual CD changer in the above embodiment as well as the above, and a name corresponding to the type of the stored CD can be further added. The extension “vc?” Means “virtual CD disc changer No.?”, And an appropriate extension can be similarly selected for this portion.

Such a file name and extension are given to each and written on a CD-R or the like, and in the embodiment shown in FIG. 1, such a CD-R or the like 1 is reproduced. In the file information 7 of the MP3 system decoder 6, the file created as described above is reproduced in the virtual file forming unit 12. FIG. 5 shows a part of the list of “MP3 virtualization information”, “virtual disk”, and “virtual CD changer” shown in FIG. The system controller 11 displays on the display unit 16 based on the virtual file. This display format can be displayed in exactly the same way as an audio system having a plurality of conventional CD changers, so that the user does not feel that he or she is using a CD-R, etc. It can be used in the mode of operation that is familiar to the law.

The digital audio apparatus shown in FIG. 1 can operate according to the operation flow shown in FIG. 2, for example. That is, in the operation process of the audio device, when the disc such as the CD-R recorded as described above is loaded into the reproducing device (step S1), the reproducing device acquires various information recorded on the disc (step S1). Step S2). At that time, various information such as ID3 tag information in the MP3 data can be captured.
If the virtual disk and the virtual CD changer have the file information of the data file configuration as described above, the file information is also acquired.

Next, the configuration file is searched for according to the present invention (step S3), and it is determined whether or not the configuration file exists (step S4). Here, when it is determined that the configuration file exists, the virtualization information of the disk recorded as the file configuration of the virtual disk as described above is obtained, and the setting is performed so that the operation can be performed based on the information. Perform (Step S5). Then
The virtualization information of the CD changer recorded as the file configuration of the virtual CD changer as described above is obtained, and the setting is performed so that the operation can be performed based on the information (step S6). The operation of acquiring the virtualization information of the CD changer in step S6 from the search of the configuration file in step S3 is a part particularly provided in the reproducing apparatus of the present invention, and is added as a function of, for example, a head unit.

When it is determined in step S4 that the configuration file according to the present invention does not exist, and when the operation in step S6 is performed, a system check is performed in the same manner as in the conventional reproducing apparatus, and the reproducing apparatus is actually used. A search is made for an attached slave unit such as a CD changer (step S7). Next, the searched slave unit is connected. At this time, the virtual disk or the virtual CD changer according to the present invention is also connected.
The internal setting is performed as if a CD changer actually exists, and the display is performed (step S8). As described above, various processes before the actual playback operation of the playback device are completed, and thereafter, the normal audio playback output process is performed (step S9).

In the above embodiment, as shown in FIG. No. 1 to No. An example is shown in which 70 songs up to 70 are recorded. On a CD-R or the like, there are 11 songs of the type described above.
Since 0 or more, sometimes about 150 songs can be recorded, there is still a lot of free space, and it is possible to additionally record a large number of songs. In this case, load the CD-R or the like into a personal computer, start up the CD-R writing software as described above, display the file structure as shown in the left screen of FIG. 3, and add additional information. Is possible.

At this time, for example, as shown in FIG. No. 70 had been recorded. Recording starts from No. 71, and in the example shown in FIG. It shows the data recorded up to 110. At this time, in the virtual disk,
For example, as shown in FIG. No. 50 are prepared, and numbers are sequentially assigned from here on, and No. 50 is also used in the virtual CD changer. Numbers can also be assigned sequentially from 6. The number at this time is made to match the function of the reproducing device in advance.

By assigning such a number, a player such as a CD-R or the like inputs, for example, "additional reproduction", thereby making the virtual disk No. An instruction to reproduce more than 50 is issued, and the virtual CD changer is linked with No. 50 in response to the instruction. 6 and the display section can display the music, virtual disk, and virtual CD changer of only this portion. Thereby, for example, first, this CD-R
Can be masked for the user, and the user can use the data as if using a new CD-R or the like.

Various methods other than the above example can be adopted as a method for making it possible to use only the additional recording data. No. 15 after No. 15 Means such as adding another code to the file name or adding another symbol to the identifier even if they are continuous from 16, and selecting and reading only this on the playback device side Can also be employed.

In the above-described embodiment, the description has been given based on the example in which the audio data is recorded in the MP3 format as the format for compressing and recording the audio data. Can be similarly applied. At that time, the CD-R
Or CD-RW, for example, MD, D
The same applies to the case of recording on VD or the like.

[0046]

The present invention is configured as described above.
When playing a large number of songs recorded on a single audio data recording medium, the user can select and play the songs in the same manner as operating a conventional audio device equipped with a disc changer. Since it is possible to arbitrarily select and listen to only the songs, even those who are unfamiliar with the file structure of the personal computer can easily perform the operation.

Further, when the virtual disk and the virtual disk changer have different extensions and are assigned consecutive numbers, the virtual disk and the virtual disk changer can be easily distinguished by identifying these extensions. , And by assigning a serial number, management of these data files can be facilitated.

Also, the digital audio data is
When performing additional recording on the audio recording medium, in the case where the previously recorded audio data is recorded so that the virtual disk or virtual disk changer can be distinguished, masking can be performed as if there is no data before the additional recording. In addition, only the added audio data can be selected and reproduced.

Further, the means for recording digital audio data displays at least a virtual disk and a virtual disk changer, and records data by an operation of transferring audio data to each display unit.
The data recording operation can be performed using the same image as that of the configuration of the conventional audio device, and even a person who is not familiar with the file configuration of the personal computer can easily perform the data recording operation.

Also, since the format for compressing and recording the digital audio data is the MP3 format, a large number of data can be recorded on one recording medium, and the MP3 format which is now widely used Even if the data is used, the reproduction operation can be easily performed.

The audio recording medium is a CD-R
Alternatively, in the case of a CD-RW, a CD-R or a CD-RW capable of recording a large number of data on one recording medium is used, and even if a single disc is reproduced, a disc changer is provided. The digital audio device can be operated as described above and can be easily used.

Further, in the case where the digital audio device is mounted on a vehicle, a large amount of audio data is recorded on one disk, and even if it is difficult to select a desired song from the data, it is difficult to use a conventional disk. The selection operation can be performed with the same feeling as that of the audio device having the changer, and the safe driving can be prevented.

[Brief description of the drawings]

FIG. 1 is a functional block diagram of an embodiment of the present invention.

FIG. 2 is an operation flowchart of the embodiment.

FIG. 3 is a diagram showing an example of an operation screen for recording audio data on a disk used in the embodiment.

FIG. 4 is a diagram sequentially showing an example of an operation process on the operation screen.

FIG. 5 is a diagram showing an example of a file configuration of audio data recorded on a disk used in the embodiment.

FIG. 6 is a diagram showing an example of a file configuration of audio data when additional recording is performed on a disc in the embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 CD-R etc. 2 Player 6 MP3 system decoder 7 File information 11 System controller 12 Virtual file formation part 13 Virtualization information file 14 Virtual CD disk 15 Virtual CD changer 16 Display part 17 Operation part

Continued on the front page F term (reference) 5D044 AB05 BC04 CC06 DE22 DE29 DE49 DE54 DE58 EF05 FG18 FG23 GK04 GK12 HL07 5D077 AA29 BA08 CA02 CB03 DC12 EA08 HA07 HB01 HC05 HC17 5D110 AA16 AA17 AA19 CD15 CB04 CD04 CB04

Claims (7)

[Claims] 1. A digital audio device for reproducing an audio recording medium on which digital audio data is compressed and recorded, wherein the digital audio data is an audio having a plurality of virtual disks and a plurality of virtual disk changers on one recording medium. Display means for displaying the audio recording medium in the form of an audio device having the plurality of virtual disks and the plurality of virtual disk changers; and A digital audio device comprising reproduction means for reproducing in accordance with a user's operation instruction. 2. The digital audio device according to claim 1, wherein the virtual disk and the virtual disk changer have different extensions and are respectively assigned serial numbers. 3. The digital audio data according to claim 1, wherein when additional recording is performed on an audio recording medium, the digital audio data is recorded so that a virtual disk or a virtual disk changer can be distinguished from previously recorded audio data. 2. The digital audio device according to 1. 4. The digital audio data recording means displays at least a virtual disk and a virtual disk changer, and records data by an operation of transferring audio data to each display unit. Digital audio equipment. 5. The digital audio device according to claim 1, wherein a format for compressing and recording the digital audio data is an MP3 format. 6. The digital audio device according to claim 1, wherein the audio recording medium is a CD-R or a CD-RW. 7. The digital audio device according to claim 1, wherein the digital audio device is mounted on a vehicle.