JP2000076832A - Method and apparatus for copying of data - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a method and an apparatus in which an economical burden is reduced by a method wherein auxiliary data is read out from a copy source disk, so as to be stored in a storage region and the auxiliary data is recorded, from the storage region, in a copy destination disk, which is loaded after the copy source disk is discharged. SOLUTION: Auxiliary data on a static image or the like which becomes an auxiliary data file which is independent of data on a piece of music or the like as a program is recorded in copy source disk 90, in addition to the data on the piece of music. As the recording region of the auxiliary data, 38 clusters are prepared inside a U-TOC, and the auxiliary data is JPEC- compressed and recorded here. When the copy source disk 90 is placed, a system controller 11 reads out the auxiliary data so as to be retained in a buffer memory RAM 13. After the copying operation of the auxiliary data is instructed, the copy source disk 90 is replaced by a new disk to be copied. Then, the system controller extracts desired data from the data in the RAM 13, and the data is recorded in a space area inside the U-TOC on the copy source disk 90, which is placed at present.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording medium for recording main data such as audio data and sub data such as character information and image information, and a method for copying the sub data. And a data copy device.

[0002]

2. Description of the Related Art As a recording apparatus / reproducing apparatus capable of recording / reproducing music or the like, a recording apparatus / reproducing apparatus using a magneto-optical disk for recording an audio signal as a digital signal or a magnetic tape or the like as a recording medium is used. Are known. In a recording / reproducing system using a magneto-optical disk, also known as a mini disk, a user can not only record and reproduce the sound of music and the like as a program, but also record the title (disk name) of the disk and record. The song name (track name) etc. can be recorded as character information for each program such as the song being played,
For example, at the time of reproduction, a display section provided in the reproduction apparatus can display a disc title, a song name, an artist name, and the like. In this specification, the term “program” is used to mean a unit of audio data such as music as main data recorded on a disk, and for example, audio data for one music is one program. The word "track" is also used synonymously with "program".

In the mini-disc system, a recording area capable of recording sub-data accompanying audio data as main data is provided separately from a recording area in which the main data is recorded. The applicant has previously proposed a configuration capable of recording image data and character data (in this specification, symbols and symbols are also included as characters).

For example, in a conventional mini-disc system, it was possible to record character information such as a disc name and a track name.
This is recorded corresponding to each program in (U-TOC: USER TABLE OF CONTENTS). However, since the U-TOC itself is not so large in capacity, as described above, it has only been possible to record characters such as a title. In contrast, by providing the sub data recording area as described above, not only character information,
For example, it is easy to record image data that does not require a large capacity like a still image.

[0005]

However, in the case where the mini-disc system has a configuration in which sub-data (image and character information) can be recorded in addition to main data (audio data) as described above, a certain disc It is naturally conceivable that there is a request from a user to copy image data and character data recorded as sub-data to another disk.

[0006] However, there is a conventional mini-disc system that employs a configuration in which audio data as main data can be copied (so-called dubbing) by a single device, but the data is corresponding to sub-data. No consideration has been given to making copies possible.

For this reason, in the present situation, when a system for copying sub-data between disks in a mini disc system is considered, for example, two mini disc players are connected via a data communication bus to copy sub data. It will be configured as follows. Alternatively, a personal computer and a mini-disc player are connected, sub-data of a certain disc once reproduced by the mini-disc player is fetched and stored in the personal computer, and a mini-disc loaded with another copy destination disc is loaded from the personal computer. By transmitting the sub data to the player, the sub data may be copied. In the case of the system configuration for sub-data copying as described above, for example, in the former case, the user needs a mini-disc player having a data communication function.
You will need to have a kitchen. In the latter case, although only one mini-disc player is required, the user must own a personal computer. Such a situation, for example, imposes an economic burden on the user anyway.

[0008]

In view of the above-mentioned problems, the present invention provides a system capable of recording and reproducing main data and sub-data, in which copying of sub-data between recording media is completed by one device. The main purpose is to be able to do so.

For this reason, a program area for recording main data having temporal continuity as one or a plurality of programs, and recording, reproducing or editing of one or a plurality of programs as the main data recorded in the program area A main data management area for recording main data management information for managing the operation; a sub data area for recording sub data as data independent of each program as main data as one or a plurality of data files; A sub-data management area for recording sub-data management information for managing recording, reproducing, or editing operations for one or more data files as sub-data recorded in the area, and Data to copy the data file as sub-data recorded on the recording medium to the copy destination recording medium As a copying method, a data read / storage process capable of reading at least sub-data from a copy source recording medium loaded in a data recording / reproducing portion and storing the data in a predetermined storage area; The recording medium loaded after being ejected from the storage medium is set as a copy destination recording medium, and all or a part of a data file as sub data stored in a storage area is recorded in a sub data area of the copy destination recording medium. And a recording control process that can perform the recording control process.

A program area for recording main data having temporal continuity as one or a plurality of programs;
A main data management area for recording main data management information for managing recording, reproducing, or editing operation of one or more programs as main data recorded in the program area, and each program as main data is independent. A sub-data area for recording sub-data as data as one or a plurality of data files; and a sub-data area for managing recording, reproduction, or editing operation for one or more data files as sub-data recorded in the sub-data area. As a data copy device for copying a data file as sub data recorded on a copy source recording medium to a copy destination recording medium, corresponding to a recording medium in which a sub data management area for recording data management information is formed, A storage means capable of storing data and a copy source recording medium loaded in a data recordable / reproducible portion A data reading / storing means capable of reading out at least the sub-data in the storage means, and a recording medium loaded after the copy source recording medium is ejected from the data recordable / reproducible portion as a copy destination recording medium; A recording control unit capable of recording all or a part of the data file as the sub data stored in the storage unit in the sub data area of the destination recording medium is provided.

According to the above configuration, the sub data read from the copy source recording medium is temporarily stored in the storage means (recording area).
Is stored. Then, data copy can be performed on the newly loaded copy destination recording medium by recording the sub-data read from the storage means (recording area).

[0012]

Embodiments of the present invention will be described below. In this embodiment, a magneto-optical disk (mini disk) is used as an example of a recording medium, and a mini disk recording / reproducing apparatus is used as an example of a recording apparatus and a reproducing apparatus.
The description will be made in the following order. 1. 1. Configuration of recording / reproducing device 2. Sector format and address format Area structure 4. 4. U-TOC 4-1 U-TOC sector 0 4-2 U-TOC sector 1 4-3 U-TOC sector 2 4-4 U-TOC sector 4 AUX-TOC 5-1 AUX-TOC sector 0 5-2 AUX-TOC sector 1 5-3 AUX-TOC sector 2 5-4 AUX-TOC sector 3 5-5 AUX-TOC sector 4 5-6 AUX-TOC sector 5 6. 6. Data file 6-1 Picture file sector 6-2 Text file sector Copying AUX data 7-1 Operation example 7-2 Processing operation

1. FIG. 1 shows an internal configuration of a mini disc recording / reproducing apparatus 1 of the present embodiment. A magneto-optical disk (mini disk) 90 on which audio data is recorded is driven to rotate by the spindle motor 2. Then, a laser beam is irradiated on the magneto-optical disk 90 by the optical head 3 during recording / reproduction.

The optical head 3 performs a high-level laser output for heating a recording track to the Curie temperature during recording, and a relatively low-level laser for detecting data from reflected light by a magnetic Kerr effect during reproduction. Perform output. Therefore, the optical head 3 is equipped with a laser diode as a laser output unit, an optical system including a polarizing beam splitter and an objective lens, and a detector for detecting reflected light. The objective lens 3a is held by the biaxial mechanism 4 so as to be displaceable in the radial direction of the disk and in the direction of coming into contact with and separating from the disk.

The optical head 3 with the disk 90 interposed therebetween
The magnetic head 6a is arranged at a position facing the above. The magnetic head 6a performs an operation of applying a magnetic field modulated by the supplied data to the magneto-optical disk 90. The entire optical head 3 and the magnetic head 6a can be moved in the disk radial direction by the thread mechanism 5.

The information detected from the disk 90 by the optical head 3 by the reproducing operation is supplied to the RF amplifier 7. The RF amplifier 7 performs an arithmetic operation on the supplied information to reproduce the RF signal, the tracking error signal TE, the focus error signal FE, and groove information (absolute position information recorded as a pre-groove (wobbling groove) on the magneto-optical disk 90). GFM and the like are extracted. The extracted reproduced RF signal is supplied to the encoder / decoder section 8. Further, the tracking error signal TE and the focus error signal FE are supplied to the servo circuit 9, and the groove information GFM is supplied to the address decoder 10.

The servo circuit 9 is provided with the supplied tracking error signal TE and focus error signal FE, and the system controller 1 composed of a microcomputer.
Various servo drive signals are generated based on a track jump command, an access command, rotation speed detection information of the spindle motor 2 and the like from the controller 1 to control the two-axis mechanism 4 and the sled mechanism 5 to perform focus and tracking control. 2 is controlled to a constant linear velocity (CLV).

The address decoder 10 decodes the supplied groove information GFM to extract address information.
This address information is supplied to the system controller 11 and used for various control operations. The reproduced RF signal is subjected to decoding processing such as EFM demodulation and CIRC in the encoder / decoder section 8. At this time, addresses, subcode data, and the like are also extracted and supplied to the system controller 11.

EFM demodulation in the encoder / decoder unit 8
The decoded audio data (sector data) such as CIRC is temporarily written into the buffer memory 13 by the memory controller 12. The reading of data from the disk 90 by the optical head 3 and the transfer of reproduced data in the system from the optical head 3 to the buffer memory 13 are at 1.41 Mbit / sec, and are usually performed intermittently.

The data written in the buffer memory 13 is read out at a timing when the transfer of the reproduction data becomes 0.3 Mbit / sec, and is supplied to the encoder / decoder section 14. Then, a reproduction signal processing such as a decoding processing for the audio compression processing is performed, and 44.1 KHz sampling, 14.1 KHz sampling,
This is a 6-bit quantized digital audio signal. This digital audio signal is converted into an analog signal by the D / A converter 15, the output processing unit 16 performs level adjustment, impedance adjustment, and the like, and outputs the analog audio signal Aout from the line output terminal 17 to an external device. . In addition, it is supplied to the headphone output terminal 27 as the headphone output HPout, and is output to the connected headphones.

The digital audio signal decoded by the encoder / decoder section 14 is supplied to the digital interface section 22 so that the digital audio signal can be outputted from the digital output terminal 21 to an external device as a digital audio signal Dout. . For example, it is output to an external device in the form of transmission by an optical cable.

When a recording operation is performed on the magneto-optical disk 90, the recording signal (analog audio signal Ain) supplied to the line input terminal 18 is converted into digital data by the A / D converter 19. Thereafter, the data is supplied to the encoder / decoder unit 14 and subjected to audio compression encoding processing. Or from a digital input terminal 20
Is supplied with the digital audio signal Din,
The digital interface unit 22 extracts control codes and the like, and the audio data is supplied to the encoder / decoder unit 14 and subjected to audio compression encoding processing. Although not shown, it is naturally possible to provide a microphone input terminal and use the microphone input as a recording signal.

The recording data compressed by the encoder / decoder 14 is temporarily written and accumulated in the buffer memory 13 by the memory controller 12, and then read out in units of a predetermined amount of data to be read by the encoder / decoder.
The data is sent to the decoder unit 8. After being subjected to encoding processing such as CIRC encoding and EFM modulation in the encoder / decoder section 8, it is supplied to the magnetic head drive circuit 6.

The magnetic head drive circuit 6 supplies a magnetic head drive signal to the magnetic head 6a in accordance with the encoded recording data. That is, the magnetic head 6a applies an N or S magnetic field to the magneto-optical disk 90. At this time, the system controller 11 supplies a control signal to the optical head so as to output a laser beam at a recording level.

The operation unit 23 indicates a part to be operated by a user, and is provided with various operation keys and operators as dials. The controls include, for example, playback, recording, pause, stop, FF (fast forward), REW (fast reverse), AMS
Operators related to recording / reproducing operations such as (search for cue), operators related to play modes such as normal playback, program playback, shuffle playback, and operations for display mode operation for switching the display state on the display unit 24 For operations for program editing operations such as child, track (program) division, track concatenation, track erasure, track name input, and disk name input, and for operations such as copying (dubbing) of AUX data, which will be described later in this example. Necessary controls are provided. Operation information from these operation keys and dials is supplied to the system controller 11, and the system controller 11 executes operation control according to the operation information.

The display operation of the display unit 24 is controlled by the system controller 11. That is, the system controller 11 transmits data to be displayed when the display operation is performed to the display driver in the display unit 24. The display driver drives a display operation of a display by a liquid crystal panel or the like based on the supplied data, and executes display of required numbers, characters, symbols, and the like. The display unit 24 shows the operation mode state of the recording / reproducing disc, the track number, the recording time / reproduction time, the editing operation state, and the like. The disk 90 can record character information (track name and the like) managed in association with a program as main data. Display of input characters at the time of inputting the character information and display of character information read from the disk can be performed. And so on. Further, in the case of the present example, sub-data (AUX data) serving as a data file independent of data such as music as a program can be recorded on the disk 90. The data file as AUX data is information such as characters and still images. These characters and still images can be displayed and output by the display unit 24.

In the present embodiment, JPN is used as a configuration for displaying a still image, which is AUX data, on the display unit 24.
An EG decoder 26 is provided. That is, in the present embodiment, still image data, which is a data file as AUX data, is JPEG (Joint Photographic Coding).
It is recorded in a file format compressed by the Experts Group) method. In the JPEG decoder 26, the disc 90
For example, a file of the still image data reproduced and stored in the buffer memory 13 is input via the memory controller 12, subjected to a decompression process according to the JPEG method, and output to the display unit 24. Thus, the still image data, which is the AUX data, is displayed on the display unit 24.

However, in order to output character information and still image information as AUX data, a full dot display or a CRT display, which has a relatively large screen and can be used on the screen to some extent, is often suitable. Therefore, the display output of the AUX data is performed by the interface unit 25.
It is conceivable that the program is executed in an external monitor device or the like via the. The AUX data file can be recorded on the disk 90 by the user. However, in such a case, it may be necessary to use an image scanner, a personal computer, a keyboard, or the like. May be input via the interface unit 25.

The system controller 11 is a microcomputer having a CPU, a program ROM, a work RAM, an interface, and the like, and controls the various operations described above.

When performing a recording / reproducing operation on the disk 90, management information recorded on the disk 90, that is, P-TOC (pre-mastered TOC),
It is necessary to read U-TOC (user TOC).
The system controller 11 determines the address of the area to be recorded on the disk 90 and the address of the area to be reproduced on the disk 90 according to the management information. This management information is held in the buffer memory 13. Then, when the disk 90 is loaded, the system controller 11 reads out the management information by executing a reproduction operation on the innermost peripheral side of the disk on which the management information is recorded, and stores the information in the buffer memory 13. Thereafter, it can be referred to at the time of recording / reproducing / editing operation of the program on the disc 90.

The U-TOC is rewritten in accordance with recording of program data and various editing processes. The system controller 11 stores the U-TOC updating process in the buffer memory 13 every time a recording / editing operation is performed. The rewriting operation is performed on the U-TOC information, and the U-TOC area of the disc 90 is rewritten at a predetermined timing in accordance with the rewriting operation.

An AUX data file is recorded on the disc 90 separately from the program, but an AUX-file is recorded on the disc 90 for managing the AUX data file.
A TOC is formed. The system controller 11 is U-
At the time of reading the TOC, the AUX-TOC is also read and stored in the buffer memory 13 so that the AUX data management state can be referred to when necessary. Further, the system controller 11 may perform a predetermined timing (or A
The AUX data file is read (at the same time as reading the UX-TOC) and stored in the buffer memory 13. Then, according to the output timing managed by the AUX-TOC, an operation of outputting characters and images in an external device via the display unit 24 and the interface unit 25 is executed.

2. Sector Format and Address Format Data units called sectors and clusters will be described with reference to FIG. As a recording track in the mini disc system, clusters CL are continuously formed as shown in FIG. 2, and one cluster is a minimum unit for recording. One cluster corresponds to two or three tracks.

One cluster CL is composed of a sector S
It is composed of a linking area of 4 sectors FC to SFF and a main data area of 32 sectors indicated as sectors S00 to S1F. One sector is a data unit formed of 2352 bytes. Of the four-sector sub-data area, the sector SFF is a sub-data sector and can be used for recording information as sub-data, but the three sectors SFC to SFE are not used for data recording. On the other hand, TOC data, audio data, AUX
Recording of data and the like is performed in a main data area for 32 sectors. The address is recorded for each sector.

The sectors are further subdivided into units called sound groups, and two sectors are divided into 11 sound groups. That is, as shown in the figure, the sound groups SG00 to SG0A are included in two consecutive sectors including an even sector such as the sector S00 and an odd sector such as the sector S01. One sound group is formed of 424 bytes,
The audio data volume is equivalent to 11.61 msec. In one sound group SG, data is recorded while being divided into an L channel and an R channel. For example, the sound group SG00 includes L channel data L0 and R channel data R0.
Is composed of L channel data L1 and R channel data R1. Note that the 212 bytes that are the data area of the L channel or the R channel are called a sound frame.

Next, FIG. 3 illustrates an address format in the mini disk system. Each sector is represented by a cluster address and a sector address. As shown in the upper part of FIG. 3, the cluster address is 16 bits (= 2 bytes), and the sector address is 8 bits (= 1 bit).
Byte). The address of these 3 bytes is
It is recorded at the head position of each sector.

Further, by adding a 4-bit sound group address, the address of the sound group in the sector can be expressed. For example, in the management of the U-TOC or the like, the notation up to the sound group address makes it possible to set a reproduction position in sound group units.

In U-TOC and AUX-TOC, a cluster address, a sector address, and a sound group address are represented by three bytes.
A shortened address as shown in the lower part of FIG. 3 is used.
First, there are 36 sectors in one cluster.
Can be expressed in bits. Therefore, the top 2 sectors address
Bits can be omitted. Similarly, since the cluster can be represented by 14 bits up to the outermost periphery of the disk, the upper two bits of the cluster address can be omitted. By omitting the upper two bits of each of the sector address and the cluster address in this manner, the address that can be specified up to the sound group is set to three.
Can be expressed in bytes.

Further, U-TOC and AUX-TO described later
In C, an address for managing a reproduction position, a reproduction timing, and the like is represented by the above-mentioned shortened type address, but the address may be represented by an offset address in addition to the absolute address form. The offset address is a relative address indicating a position in a program, such as a musical piece or the like, where the start position of each program is an address 0. An example of this offset address will be described with reference to FIG.

As will be described later with reference to FIG. 5, a program such as music is recorded on the 50th cluster (cluster 32h in hexadecimal notation; hereinafter, a numeral with "h" in the present specification). Is a numerical value in hexadecimal notation). For example, the address value of the address (cluster 32h, sector 00h, sound group 0h) at the start position of the first program is as shown in the upper part of FIG.
"00000000000011001000000000000
0000 "(that is, 0032h, 00h, 0h). When this is shown in a short form, as shown in the lower part of FIG.
"000000000001100100000000000
0 "(that is, 00h, C8h, 00h).

Starting from the start address, a certain position in the first program, for example, a cluster 0032
h, the sector 04h, and the sound group 0h have the address "0" in the short form of the absolute address as shown in FIG.
0h, C8h, 40h ", while the offset address is the difference between the cluster 000 and the start address.
0h, the sector 04h, and the sound group 0h may be represented, so that they are "00h, 00h, 40h".

With the start address of FIG. 4A as a starting point, as a certain position in the first program, for example, cluster 0032h, sector 13h, sound group 9h
Is an absolute address "00h, C9h, 39h" in the short form as shown in FIG. 4C, while the offset address is "00h, 01h, 39h". For example, as in these examples, a position in a program or the like can be designated by an absolute address or an offset address.

3. Area Structure The area structure of the disc 90 of this example will be described with reference to FIG. FIG. 5A shows an area from the innermost side to the outermost side of the disk. Disk 90 as magneto-optical disk
Is a pit area on the innermost side where reproduction-only data is formed by embossed pits.
C is recorded. The outer periphery from the pit area is a magneto-optical area, which is a recordable / reproducible area in which a groove is formed as a guide groove for a recording track. The section from cluster 0 to cluster 49 on the innermost side of the magneto-optical area is the management area, and the program area of the actual music and the like is recorded in the program area from cluster 50 to cluster 2251. The periphery of the program area is a lead-out area.

FIG. 5 shows the inside of the management area in detail.
(B). FIG. 5B shows sectors in the horizontal direction and clusters in the vertical direction. In the management area, clusters 0 and 1 are buffer areas with the pit area. The cluster 2 is a power calibration area PCA and is used for adjusting the output power of the laser beam. For clusters 3, 4, and 5, U-TOC is recorded. U
Although the contents of -TOC will be described later, a data format is defined in each sector in one cluster, and predetermined management information is recorded in each sector.
A cluster having a sector serving as C data is repeatedly recorded three times in clusters 3, 4, and 5.

AUX-TOC is recorded in clusters 6, 7, and 8. Although the contents of the AUX-TOC will be described later, a data format is defined in each sector in one cluster, and predetermined management information is recorded. Clusters having a sector serving as such AUX-TOC data are repeatedly recorded three times in clusters 6, 7, and 8.

The area from the cluster 9 to the cluster 46 is an area where AUX data is recorded. The data file as AUX data is formed in sector units,
A picture file sector as a still image file, a text file sector as a character information file, and a karaoke text file sector as a character information file synchronized with a program are formed. The data file as the AUX data and the AU
The area where the AUX data file can be recorded in the X data area is managed by the AUX-TOC.

The recording capacity of the data file in the AUX data area is 2.8 Mbytes when considered as the error correction mode 2. It is also conceivable to increase the recording capacity of the data file by forming a second AUX data area in, for example, the latter half of the program area or an area on the outer periphery side of the program area (for example, a lead-out part).

The clusters 47, 48 and 49 are buffer areas for the program area. Cluster 50 (= 32
h) In the subsequent program area, audio data of one or a plurality of music pieces is recorded in a compression format called ATRAC. Each recorded program and recordable area are U
-Managed by TOC. In each cluster in the program area, the sector FFh can be used for recording some information as sub data as described above.

In the mini-disc system, a read-only disk in which a program or the like is recorded in the form of pits as read-only data is also used.
The recorded program is managed by the P-TOC in substantially the same manner as a U-TOC described later, and the U-TOC is not formed. However, when a read-only data file is recorded as AUX data, an AUX-TOC for managing the data file is recorded.

4. U-TOC 4-1 U-TOC Sector 0 As described above, in order to perform the recording / reproducing operation of the program (track) on the disk 90, the system controller 11 requires the management recorded on the disk 90 in advance. The P-TOC and U-TOC as information are read out and referred to when necessary. here,
The U-TOC sector will be described as management information for managing the recording / reproduction operation of tracks (music and the like) on the disc 90.

The P-TOC is formed in the innermost pit area of the disk 90 as described with reference to FIG. 5, and is read-only information. The P-TOC manages the position of a recordable area (recordable user area), a lead-out area, a U-TOC area, and the like on the disc. In the case of a read-only optical disk in which all data is recorded in a pit form,
The P-TOC can also manage music recorded in the form of a ROM and the U-TOC is not formed. A detailed description of the P-TOC is omitted, and here, the U-
-TOC will be described.

FIG. 6 shows the format of U-TOC sector 0. The U-TOC sector can be provided from sector 0 to sector 32, in which sector 1 and sector 4 are character information, and sector 2 is an area for recording the recording date and time. First, U which is always necessary for the recording / reproducing operation of the disc 90
-TOC sector 0 will be described.

The U-TOC sector 0 is a data area in which programs such as songs recorded by the user and management information on free areas in which new programs can be recorded are mainly recorded. For example, when attempting to record a certain music on the disk 90, the system controller 11 searches for a free area on the disk from the U-TOC sector 0, and records audio data there. At the time of reproduction, the area in which the music to be reproduced is recorded is determined from U-TOC sector 0, and the reproduction operation is performed by accessing the area.

The data area of U-TOC sector 0 (4 bytes × 588, 2352 bytes) has all 0s at the beginning position.
Alternatively, a synchronization pattern in which all 1-byte data are formed side by side is recorded. Then the cluster address (Clust
er H) (Cluster L) and an address serving as a sector address (Sector) are recorded over 3 bytes, and one byte of mode information (MODE) is added. The 3-byte address here is the address of the sector itself.

The header portion in which the synchronization pattern and the address are recorded is not limited to the U-TOC sector 0, but may be a P-TOC sector, an AUX-TOC sector, or an A-TOC sector.
The same applies to the UX file sector and the program sector. For each of the sectors shown in FIG. 8 and thereafter, the description of the header portion is omitted, but the address and synchronization pattern of the sector itself are recorded in sector units. In addition, as the address of the sector itself, the cluster address includes an upper address (Cluster H) and a lower address (Cluster H).
L), and the sector address (Sector) is written in 1 byte. That is, this address is not in short form.

Subsequently, a maker code, a model code, and a track number (F
irst TNO), track number of last track (Last T
NO), data such as sector usage (Used sectors), disk serial number, and disk ID are recorded.

Further, various pointers (P-DFA) are used as pointers in order to identify an area of a track (music or the like) or a free area recorded by the user by making it correspond to a table section described later. , P-EMPT
An area for recording Y, P-FRA, and P-TNO1 to P-TNO255) is prepared.

As a table section to be associated with the pointers (P-DFA to P-TNO255), 255 parts tables from (01h) to (FFh) are provided. For a part, a start address as a starting point, an end address as an end, and mode information (track mode) of the part are recorded. In addition, since the parts indicated in each part table may be successively connected to other parts, link information indicating the part table in which the start address and the end address of the connected parts are recorded can be recorded. Have been. Note that a part refers to a track portion in which temporally continuous data is physically continuously recorded in one track. And the start address,
The address indicated as the end address is an address indicating one or a plurality of parts constituting one music piece (track). These addresses are recorded in short form,
Specify clusters, sectors, and sound groups.

In this type of recording / reproducing apparatus, data of one music (program / track) is reproduced in a physically discontinuous manner, that is, while data is recorded over a plurality of parts, while accessing between parts. Therefore, there is a case where a music piece or the like recorded by a user is divided into a plurality of parts for the purpose of efficient use of a recordable area.

Therefore, link information is provided, and the part tables can be connected by designating the part tables to be connected by, for example, the numbers (01h) to (FFh) given to the respective part tables. In other words, in the management table section in the U-TOC sector 0, one parts table represents one part. For example, for a music composed of three parts connected, three parts connected by link information The position of the part is managed by the table. Note that the link information is actually indicated by a numerical value which is a byte position in the U-TOC sector 0 by a predetermined arithmetic processing. That is, the part table is designated as 304+ (link information) × 8 (byte).

Each part table from (01h) to (FFh) in the table section of the U-TOC sector 0 includes pointers (P-DFA, P-EMPTY, P-FRA, P-TNO1) in the pointer section.
~ P-TNO255) indicates the contents of the part as follows.

The pointer P-DFA is attached to a defective area on the magneto-optical disk 90, and is stored in one or a plurality of parts tables showing a track portion (= part) serving as a defective area due to a scratch or the like. Of the first part table is specified. That is, when a defective part exists, any one of (01h) to (FFh) is recorded in the pointer P-DFA, and the defective part is indicated by the start and end addresses in the corresponding parts table. If another defective part exists, another part table is designated as link information in the part table, and the defective part is also shown in the part table. If there is no other defective part, the link information is set to, for example, "(00h)".
After that, there is no link.

The pointer P-EMPTY indicates the head part table of one or a plurality of unused part tables in the management table section. If an unused part table exists, the pointer P-EMPTY is set as (P-EMPTY). 01h)-(F
Fh) is recorded. When there are multiple unused part tables, the part tables are sequentially specified by the link information from the part table specified by the pointer P-EMPTY, and all the unused part tables are linked on the management table section. You.

The pointer P-FRA indicates a data writable free area (including an erasure area) on the magneto-optical disk 90, and one or more track portions (= parts) indicating the free area are indicated. The first part table in the parts table is specified. In other words, if there is a free area, (01
h) to (FFh) are recorded, and in the corresponding parts table, parts which are free areas are indicated by start and end addresses. When there are a plurality of such parts, that is, when there are a plurality of parts tables, the link information sequentially designates parts tables whose link information is “(00h)”.

FIG. 7 schematically shows the management state of parts that are free areas by using a parts table. This is because when the part (03h) (18h) (1Fh) (2Bh) (E3h) is set as a free area, this state follows the pointer P-FRA and the parts table (03h) (18h) (1Fh) (2Bh) The state represented by the link (E3h) is shown. The above-described management of the defective area and the unused parts table is the same.

The pointers P-TNO1 to P-TNO255 indicate tracks such as songs recorded on the magneto-optical disk 90 by the user.
A part table indicating a temporally leading part of one or a plurality of parts in which track data is recorded is designated. For example, if a music piece set as the first track (first program) is recorded on the disc without dividing the track, that is, as one part, the recording area of the first track is indicated by the pointer P-TNO1. Are recorded as start and end addresses in the parts table.

For example, in the case where the music set as the second track (second program) is discretely recorded on a plurality of parts on the disc, each part is time-based to indicate the recording position of the second track. Are specified according to a typical order. In other words, from the part table designated by the pointer P-TNO2, another part table is sequentially designated by the link information in order of time, and linked to the parts table in which the link information is "(00h)" ( The above-described embodiment is similar to FIG. 7). In this way, for example, since all the parts on which the data constituting the second tune are recorded are sequentially designated and recorded, the data of the U-TOC sector 0 can be used to reproduce the second tune or the second tune. When performing overwrite recording on the area, it is possible to access the optical head 3 and the magnetic head 6a to extract continuous music information from discrete parts, and to perform recording using the recording area efficiently.

As described above, for the rewritable magneto-optical disk 90, the area management on the disk is performed by the P-TOC.
The music and free areas recorded in the recordable user area are performed by U-TOC.

4-2 U-TOC Sector 1 Next, FIG. 8 shows the format of the U-TOC sector 1. This sector 1 is used as a data area for recording input character information when a track name is given to each recorded track or a disc name is given as information such as the name of the disc itself.

The U-TOC sector 1 has a pointer P-TN as a pointer corresponding to each recorded track.
A1 to P-TNA255 are prepared, and the pointers P-TNA1 to P-TNA255
The slot part specified by TNA255 is 8 bytes per unit, and slots (01h) to (FFh) of 255 units and one slot (00h) of the same 8 bytes are prepared, which are almost the same as the U-TOC sector 0 described above. Character data is managed in a similar manner.

In the slots (01h) to (FFh), character information as a disc title or a track name is recorded in ASCII code. Then, for example, a character input by the user corresponding to the first track is recorded in the slot specified by the pointer P-TNA1. Further, by linking the slots by the link information, the character input corresponding to one track can be handled even if it is larger than 7 bytes (7 characters). Note that 8 bytes as the slot (00h) are a dedicated area for recording a disc name, and are not specified by the pointer P-TNA (x). This U-TOC sector 1
But the pointer P-EMPTY manages unused slots.

4-3 U-TOC Sector 2 Next, FIG. 9 shows a format of the U-TOC sector 2, and this sector 2 is mainly data for recording the recording date and time of a music piece recorded by the user. Area.

The U-TOC sector 2 has a pointer P-TR as a pointer portion corresponding to each recorded track.
D1 to P-TRD255 are prepared, and the pointers P-TRD1 to P-TRD255
A slot specified by TRD255 is prepared. In the slot part, one unit is 8 bytes and a slot of 255 units (0
1h) to (FFh) are formed, and the date and time data is managed in substantially the same form as that of the U-TOC sector 0 described above.

In the slots (01h) to (FFh), the recording date and time of the music (track) is recorded in 6 bytes. Six bytes record numerical values corresponding to year, month, day, hour, minute, and second, one byte at a time. The remaining two bytes are a maker code and a model code, in which code data indicating the manufacturer of the recording device that recorded the music and code data indicating the model of the recording device that recorded the music are recorded.

For example, when a track is recorded as the first music piece on the disc, the recording date and time, the maker code and model code of the recording device are recorded in the slot designated by the pointer P-TRD1. The recording date and time data is automatically recorded by the system controller 11 with reference to the internal clock.

The eight bytes as the slot (00h) are a dedicated area for recording the recording date and time in disk units, and are not specified by the pointer P-TRD (x). In this U-TOC sector 2, the slot pointer P-EMPTY manages unused slots. For unused slots, link information is recorded in place of the model code, and each unused slot is managed by linking with the link information starting from the slot pointer P-EMPTY.

4-4 U-TOC Sector 4 FIG. 10 shows the U-TOC sector 4 and this sector 4
, Like the sector 1 described above, give the song name (track name) to the track on which the user has recorded,
When a disc name is given, the data area is used as a data area for recording input character information. As can be seen by comparing FIGS. 10 and 8, the format is almost the same as that of the sector 1. However, this sector 4 is designed to record code data (two-byte code) corresponding to Chinese characters and European characters. In addition to the data of sector 1 in FIG. Is recorded.
The management of the character information of the U-TOC sector 4 is performed by the pointers P-TNA1 to P-TNA255 and the pointer P-TNA255 similarly to the sector 1.
This is performed by slots (01h) to (FFh) of 255 units specified by TNA1 to P-TNA255.

Although the recording / reproducing apparatus 1 of this embodiment can cope with a read-only disc in which a U-TOC is not formed, in the case of a read-only disc, character information as a disc name and a track name is recorded in the P-TOC. I can put it. That is, U as a P-TOC sector
Sectors substantially similar to the -TOC sector 1 and the sector 4 are prepared, and the disc maker can record the disc name and the track name in the P-TOC sector in advance.

5. AUX-TOC 5-1 AUX-TOC sector 0 In the disc 90 of the present example, the AUX
An area for recording the data file and the AUX-TOC is set, and character information and image information independent of tracks (programs) such as music can be recorded as the AUX data file. And the AUX data file is AUX
-Managed by TOC. This AUX-TOC is
It is recorded three times repeatedly over three clusters, and therefore, as a management data structure, 32 sectors in one cluster can be used as in the U-TOC. In this example, as described below, AUX-TOC sector 0 to sector 5
Is set to manage the AUX data file.

First, the format of AUX-TOC sector 0 will be described with reference to FIG. AUX-TOC sector 0
Is an area allocation table that manages a free area (empty area) in the AUX data area mainly as an entire AUX data area. And FIG.
As shown in the figure, in this sector 0, the header (sector address (Sector) = 00h, mode information (MODE) = 02
h), a 'M' is added at a predetermined byte position.
Four characters'D''A''D' are recorded using an area of 4 bytes by ASCII code. This 'M'
The characters "D" A "D" indicate the format ID, and are commonly recorded in the same byte position for the AUX-TOC sector described below. Further, a maker code and a model code are recorded at a predetermined byte position following the format ID, and used sector information is recorded at a predetermined byte position after the maker code and the model code.

The used sector information includes AUX-
The sector usage in the TOC is shown. Used S
The eight bits d8-d1 forming ectors0 respectively correspond to sectors 0-7. Hereinafter, similarly,
D8-d1 of Used Sectors 1 correspond to 8-15 sectors, respectively. Used Sector
d8-d1 of s2 respectively correspond to 16-23 sectors. D8-d1 of Used Sectors 3 is
Each corresponds to 24-31 sectors.

In the AUX-TOC sector 0, pointers P-EMPTY and P-BLANK are formed as a pointer portion. Then, 99 units of each 8-byte parts table in which the start address, the end address, and the link information are recorded are formed in the table section, and the AUX data area is managed in the same manner as the U-TOC sector 0 described above. However, in this case, the parts table (01h)
To (63h) are used as the table part, and the remaining parts tables (64h) to (FFh) are not used.
L'0 '(zeros) is set. Although the parts table (64h) and subsequent parts may be used as the table part, in practice, management using a parts table of 99 units is sufficient. Here, the part tables (01h) to (63h) as valid table parts are determined according to a specific capacity of the buffer memory 13.

The pointer P-EMPTY points to the AUX-TOC
Unused part tables in the sector 0 are managed in a link form.

The pointer P-BLANK indicates a free area in the AUX data area, that is, an area where the AUX data file can be recorded, in the U-TOC sector 0.
Is managed in the form of a link in the parts table, similarly to the pointer P-FRA in.

The start address and the end address are in a shortened form, and can be specified up to the sound group position. However, the AUX-TO of the present embodiment
In C sector 0, it is specified that the address is specified up to the cluster unit, and ALL '0' is set to the data position indicating the sound group unit in the sector, start address, and end address.
The start address and end address recorded in 3 bytes in the table portion or the slot portion of the AUX-TOC sector 1 to sector 5 described below are also in a shortened form. Further, the definition of which data unit is specified as the start address and the end address differs depending on the contents of each sector, and will be appropriately described below.

AUX-TO on a read-only disc
When C is formed, the link information in the parts table is not used.

5-2 AUX-TOC Sector 1 AUX-TOC sectors 1 to 3 are used for managing picture files as still picture information. FIG.
AUX-TOC sector 1 shown in (1) is a management sector as a picture allocation table, and manages each data file recorded as a picture file in the AUX data area.

In the AUX-TOC sector 1, the U-
The picture file is managed in the same format as in the TOC sector 0. In the present embodiment, the file length of a single still image picture file recorded in the AUX data area is not particularly defined. However, in the present embodiment, a maximum of 100 picture files including a cover image (Cover Picture) can be managed as described later. Accordingly, the number of picture files that can be substantially recorded is 100. The cover image is, for example, a cover picture that becomes a disc jacket or the like.

In the case of the AUX-TOC sector 1, in the header, a sector address (Sector) = 01h and mode information (MODE) = 02h are recorded.

A pointer P-PNO (x) used for managing each of the 99 picture files other than the cover image is A
Pointers P-PNO1 to P-PNO9 in the UX-TOC sector 1
9 is formed. “00h” is recorded at each byte position from the position after the pointer P-PNO99 to immediately before the table section. However, in order to cope with a case where a larger number of picture files can be recorded due to a future expansion of the AUX data area or a change in file size, a pointer is set.
As the P-PNO (x), the pointers P-PNO100 to P-PN255 from the byte position following the pointers P-PNO1 to P-PNO99 to the pointer P-PNO255 indicated by parentheses in FIG.
Can be set.

Further, a 2-byte area following the maker code and the model code is used as pointers FirstPNO and LastPNO. Pointers P-PNO1 to P-PNO99
The number x of the first pointer P-PNO (x) used is recorded, and the number x of the last pointer P-PNO (x) used is recorded as the pointer Last PNO. For example, of the pointers P-PNO1 to P-PNO99, the pointer P-PNO1
~ P-PNO5, the pointer First
PNO = 01h and pointer Last PNO = 05h are recorded.

In the pointer section, the pointer P-PFR
A and P-EMPTY are also formed. As the 8-byte parts table corresponding to each pointer in the table section, 99-unit parts tables (01h) to (63h) in which a start address, an end address, and an image mode (S. Pict. Mode) are recorded are listed. It is formed. Also in this case, AU
Similar to X-TOC sector 0, the remaining parts table (64
h) to (FFh) are not used, and ALL '0' (z
eros) is set.

The part table (00h) is a part table not specified by the pointer, but is used exclusively for managing the address of a picture file positioned as a cover image (Cover Picture). The above-described image mode (S. Pict. Mode) is similarly provided in the cover image part table (00h).

The pointers P-PNO1 to P-PNO99 each have 1
The area where one picture file is recorded is managed by designating a specific parts table. Eg pointer
In the parts table specified by P-PNO1, the start address and end address of the picture file that is the image data for the first sheet, the image mode (S. Pict. Mode)
Is recorded. This AUX-TOC
In the sector 1, the file management performed by linking the part tables by the link information (Link-P) is not performed. That is, one picture file is not recorded while being divided into physically separated sections.

However, an unused part table in this sector is managed by a link form starting from the pointer P-EMPTY (the 8th byte of the part table is used as link information).

The pointer P-PFRA in the AUX-TOC sector 1 indicates that less than one cluster of picture data is recorded in one cluster area in the AUX data area, and that the picture data If an area where no data is recorded is an unrecorded area (recordable area), that is, a free area, it is used as a pointer for managing this free area. That is, the address of the section as the free area is recorded in the parts table specified by the pointer P-PFRA.

An image mode (S. Pict. Mode) in each part table in the AUX-TOC sector 1
Indicates mode information including a copy status for a picture file recorded at an address specified by each part table.

The image mode (S. Pict. Mode) is defined, for example, as shown in FIG. The image mode has eight bits d1 to d8. The copy status is indicated by two bits d1 to d2. The copy status is information set as to whether or not copying of the corresponding picture file is permitted. In this case, if the copy status is set to (0h), it indicates that copying is permitted, and the picture file can be copied any number of times. When the copy status is set to (1h), it indicates that only one more copy is permitted for the picture file. When the copy status is (2h), it indicates that the picture file is permitted to be copied only once via the authenticated data bus. Conversely, copying via an unauthenticated data bus is not permitted. When the copy status is set to (3h), it indicates that copying of the picture file is prohibited. The remaining d3
The six bits -d8 are undefined here.

When data is copied for a certain picture file, the copied picture file is copied according to the contents of the copy status given for the picture file before the copy. The correspondingly given copy status is to be updated as shown in FIG. That is, if the copy status of a certain picture file is “0h” before copying, the copy status “0h” is given to the picture file even after copying. That is, copying can be performed any number of times. On the other hand, if the copy status is "1h" or "2h" before the copy, the copy status is "3h" after the copy.
h "indicates that subsequent copying is prohibited.

5-3 AUX-TOC Sector 2 FIG. 13 shows the format of AUX-TOC sector 2. The sector 2 is a picture information table, and a picture name, a recording date and time, and an Internet URL (Unif
orm Resource Locators) (in this embodiment,
When these pieces of information are referred to as picture information), each piece of information as the picture information is used as a data area for recording as character information.

Before describing the AUX-TOC sector 2, the structure of the picture information file recorded in the table section of the AUX-TOC sector 2 will be described with reference to FIG. Here, the picture information file is picture information information corresponding to one picture file.

As shown in FIG. 20, in the picture information file, first, a data unit as a picture name is arranged at the beginning with an ASCII code or other character code. This picture name conforms to the format of character information recorded in the slot of U-TOC sector 4 shown in FIG. Following the data unit as a picture name, “1Fh” indicating a delimiter between data units is arranged, followed by a data unit of recording date and time. This recording date and time is recorded using 6 bytes as described above in accordance with the format of the recording date and time recorded in the slot of the U-TOC sector 2 shown in FIG. The above “1Fh” is arranged even after the data unit of the recording date and time, and UR is added after this.
Character information as L is arranged. This URL can be recorded from the MSB using an ASCII code without depending on a character code (character.code) described later.
Then, the end of the file is ended by “00h”.

Note that the picture name, recording date and time, and U
When it is determined that there is no substantial content for a certain RL data unit, "00h" is recorded instead of that data unit.

In the case of the above-mentioned URL, for example, when the picture file is obtained by downloading from a homepage on the Internet, the URL of the homepage is added to the picture file.

Returning to FIG. 13, AUX-TOC sector 2
Will be described. First, in the header of AUX-TOC sector 2, sector address (Sector) = 02
h, mode information (MODE) = 02h is recorded.

In the AUX-TOC sector 2, pointers P-PIF1 to P-PIF99 (expandable to P-PIF255) are prepared in the pointer section to correspond to each recorded picture file. The pointer P-
2 in 8 bytes, which can be specified by PIF1 to P-PIF99
55 slots (01h) to (FFh) and one slot (00h) of 8 bytes are prepared. The two-byte area following the maker code and the model code is used as pointers First PIF and Last PIF. Pointer First P
The IF records the number of the first pointer P-PIF used among the pointers P-PIF1 to P-PIF99, and the pointer L
In astPIF, the number of the last used pointer P-PIF is recorded.

In the slots (00h) to (FFh), character information as a picture information file is recorded in ASCII codes or other character codes. The type of the recorded character is defined by the character code (chara.code in the figure) recorded at a predetermined byte position on the AUX-TOC sector 2.

As the character code, for example, “00h” is an ASCII code, and “01h” is a modified ISO. 885
9-1, "02h" is Music Shifted JIS,
“03h” is defined as KS C 5601-1989 (Korean), and “04h” is defined as GB 2312-80 (Chinese).

The pointers P-PIF1 to P-PIF99 specify a specific parts table in which a picture information file of a file number corresponding to the number of each pointer is recorded. For example, a character corresponding to the image of the first picture file is recorded in the slot specified by the pointer P-PIF1. Note that 8 bytes as the slot (00h) are a dedicated area for starting recording of the picture information file corresponding to the cover picture, and are not specified by the pointer P-PIF (x). These slots are linked by link information so that a picture information file corresponding to one picture file can be handled even if it is larger than 7 bytes. The pointer P-EMPTY manages unused slots in a link form.

The picture name, recording date and time, and U
A different AUX-TOC sector may be set for each RL and managed separately. However, as shown in FIGS. 13 and 20, the AUX-TO
By collectively managing various character information attached to a picture file by the C sector 2 as a picture information file, the picture name, recording date and time,
As compared with the case where different AUX-TOC sectors are provided and managed for each URL, the data amount (the number of TOC sectors) required as management information is reduced, and the recording area of the disk is effectively used.

5-4 AUX-TOC Sector 3 The AUX-TOC sector 3 shown in FIG. 14 is a picture playback sequence table. This is management information for outputting a picture file (that is, displaying an image) in synchronization with the reproduction of a program such as a song.

In the header of AUX-TOC sector 3, sector address (Sector) = 03h, mode information
(MODE) = 02h is recorded.

The pointers P-TNP1 to P-TNP are used as pointers to correspond to each of the recorded picture files.
P99 (however, expandable to P-PIF255) is provided. The pointers P-TNP1 to P-TNP99 correspond to the track numbers of the audio data recorded in the program area on a track-by-track basis. That is, it corresponds to the first to 99th tracks. In the table section, pointers P-TNP1 to P-TN
A part table (01h) to (63h) of 99 bytes and a unit table of 8 bytes specified by P99 and one parts table (00h) of 8 bytes are prepared. All parts tables (64h) to (FFh) not used in this case are all
'0' is recorded. The pointers First TNP and Last TNP following the maker code and model code are respectively the number of the first pointer P-TNP used and the last pointer P used among the pointers P-TNP1 to P-TNP99.
-The TNP number is recorded.

In each of the parts tables specified by the pointers P-TNP1 to P-TNP99, a start address and an end address are recorded in the form of an offset address from the head position address of the track. In the AUX-TOC sector 3, addressing is performed in units of sound groups. In the fourth byte of each part table, a specific picture file is indicated as a pointer P-PNOj. The pointer P-PNOj is stored in each picture file (P-PNO1-9) managed in the AUX-TOC sector 1.
This is equivalent to 9). Further, another part table can be linked by the link information.

For example, when reproducing the music as the first track, if the user wants to output the image of the first picture file at a specific timing during the reproduction, the user designates the pointer P-TNP1 corresponding to the first track. The start address and the end address as the image output period are recorded in the parts table to be output, and the pointer P-
PNOj indicates a specific picture file. Suppose that one minute and thirty seconds elapse from the start of reproduction of the first track, and one and a half minutes
Considering the case where it is desired to display and output the image of the first picture file until the time elapses, the pointer P-TNP1
1 minute from the start of the reproduction of the first track in the parts table specified by
An address point corresponding to seconds and an address corresponding to 1 minute 30 seconds are recorded by offset addresses. The pointer P-PNOj) is set to the value of P-PNO1 to specify the first picture file. If it is desired to switch and display a plurality of images during the reproduction of one track, the parts tables are linked to manage the picture file to be output and the output period.

The parts table (00h) corresponds to the cover picture (Cover Picture). However, since the cover picture is not output in principle in synchronization with the reproduction of the audio track, here,
ALL '0' is recorded as the start address and end address of the parts table (00h).

If both the start address and the end address in the parts table corresponding to a certain track are ALL '0', the picture file (pointer P) specified during the audio output period of the track -PNOj) is displayed. Also, only for the end address
If it is '0', the picture file specified by the pointer P-PNOj is output up to the start address of the picture file to be displayed next. If both the start address and the end address are not ALL '0' and have the same value, the display output of the picture file is prohibited. Also this AUX-TOC
In the sector 5, the part table not used by the link from the pointer P-EMPTY is managed.

5-5 AUX-TOC Sector 4 AUX-TOC sector 4 and sector 5 are used for managing text files. First, the AUX-T shown in FIG.
The OC sector 4 becomes a management sector as a text allocation table, and manages each data file recorded as a text file in the AUX data area.

In this AUX-TOC sector 4, U-TOC
The text file is managed in the same format as in the TOC sector 0. Assuming that the entire AUX data area is used for recording a text file, 38 clusters (× 32
Although text data for (sector × 2324 bytes) can be recorded, this text data can be managed as a maximum of 255 files in the AUX-TOC sector 4. However, as described later, it is assumed that up to 100 files including one cover text are managed. Note that the length of one text file is set in sector units.

One specific text file can be positioned as a text file (cover text) corresponding to a so-called cover picture of a disc.

In the header of the AUX-TOC sector 4, a sector address (Sector) = 04h and mode information (MODE) = 02h are recorded.

As the pointer P-TXNO (x) used for managing each text file, the pointers P-TXNO1 to P-TXNO99 (where P-TXNO2
(Expandable to 55). Pointers P-TXNO1 to PT
XNO99 corresponds to the track number of the audio track. That is, here, up to 99 text files associated with the first to 99th audio tracks can be managed (excluding the cover text). In the pointer section, pointers P-PFRA and P-EMPTY are also formed. The start address, the end address, and the text mode are recorded as an 8-byte parts table corresponding to each pointer in the table section.
The part tables (01h) to (63h) of the unit are formed. (Part tables (63h) to (FFh) are not used and all
'0' is stored). The definition contents of the text mode will be described later.

The parts table (00h) is a parts table which is not specified by the pointer, but is used exclusively for managing the address of the text file positioned as the cover text and the text mode.

Each of the pointers P-TXNO1 to P-TXNO99 manages an area where one text file is recorded by designating a specific parts table. For example, in the parts table specified by the pointer P-TXNO1, the start address, end address, and text mode of the first text file are recorded as file numbers.

Since the text file is in sector units as described above, the start address and the end address are described up to the sector unit, and "0h" is set at the data position indicating the address in sound group units. Set.

In the AUX-TOC sector 6, file management performed by linking parts tables based on link information is not performed. That is, one text file is not recorded while being divided into physically separated sections.

However, an unused part table in this sector is managed by a link form starting from the pointer P-EMPTY (the 8th byte of the part table is used as link information). The pointer P-PFRA in the AUX-TOC sector 4 indicates that text file data of less than one cluster is recorded in one cluster area in the AUX data area, and that data is recorded in one cluster. If an unrecorded area is an unrecorded area (recordable area), that is, a free area, it is used as a pointer for managing this free area.
That is, the address of the section as the free area is recorded in the parts table specified by the pointer P-PFRA. In this free area management, the 8th byte of the parts table is used as link information and the parts tables are linked, and a plurality of separated sections may be managed as free areas.

Here, a text mode (Text mode) set in each part table of the AUX-TOC sector 4
Will be described with reference to FIG. The text mode is an area at the position of the fourth byte in each part table, and is formed by 8 bits (1 byte) d1 to d8. Of these d1-d8, d
The two bits 1-d2 indicate the copy status, which is described in the copy status (S.Pic) for the picture file described earlier with reference to FIG.
t. Mode), and the description is omitted here.

The two bits d3-d4 indicate the contents of the text file. In this case, if d3−d4 is “0h”, it indicates that the text is a song text. That is, the text file indicates that this is the text of the lyrics of the song as the corresponding audio track. If "1h", the artist information (artist name etc.) playing the song as the corresponding audio track is indicated. Indicates that the text is written. “2h” indicates that the text describes so-called liner notes (eg, a commentary attached to the album), and “3h” indicates that the text is other information.

[0130] One bit of d5 indicates whether a time stamp is inserted in the text file. If it is "0", it indicates that there is no time stamp. If "1", it indicates that there is a time stamp. The time stamp will be described later with reference to FIG.

The three bits d6-d7-d8 indicate a character code. As the character code, for example, “0h” is an ASCII code, and “1h” is a modified ISO. 88
59-1, "2h" is Music Shifted JIS,
“3h” is KS C 5601-1989 (Korean),
“4h” is defined as GB2312-80 (Chinese). “5h” and “6h” are undefined (Reserved). “7h” is plain text, and by defining the text file as plain text, it is possible to provide expandability as a character code.

5-6 AUX-TOC Sector 5 FIG. 16 shows the format of the AUX-TOC sector 5. The sector 5 is a text information table. When a text name, recording date and time, and Internet URL information (in the present embodiment, these information are referred to as text information) are attached to each recorded text file. It is a data area for recording each information as text information as character information.

The structure of the text information file recorded in the table section of the AUX-TOC sector 5 conforms to the picture information file shown in FIG. That is, it has the same structure except that the data unit of the picture name in FIG. 20 is changed to the data unit of the text name.

As the format of the AUX-TOC sector 5 shown in FIG. 16, in the header, a sector address (Sector) = 05h and mode information (MODE) = 02h are recorded.

In the AUX-TOC sector 5, pointers P-TXIF1 to P-TXIF99 (however, expandable to P-TXIF255) are prepared in the pointer section to correspond to each recorded text file. In the part, slots (01h) to (FFh) of 8 bytes and 255 units which can be designated by pointers P-TXIF1 to P-TXIF99 and 8
One slot (00h) of bytes is provided. Then, the pointer First following the manufacturer code and model code
TXIF and Last TXIF are pointers P-TXIF1 to P-TXIF, respectively.
Of the 99, the number of the first used pointer P-TXIF is recorded, and the number of the last used pointer P-TXIF is recorded as the pointer Last TXIF.

The slots (00h) to (FF)
In h), character information as a text information file is recorded in ASCII code or other character codes. The type of the recorded character is the character code (char) recorded at a predetermined byte position on the AUX-TOC sector 2.
a.code).

Also in this case, the character code is AUX-TO
As in sector 2, for example, "00h" is an ASCII code, and "01h" is a modified ISO. 8859-
1, "02h" is Music Shifted JIS, "0
3h ”is KS C 5601-1989 (Korean),
"04h" is defined as GB2312-80 (Chinese).

The pointers P-TXIF1 to P-TXIF99 specify a specific parts table in which a text information file of a file number corresponding to the number of each pointer is recorded. For example, a character corresponding to the image of the first text file is recorded in the slot specified by the pointer P-TXIF1. The slot (00
8 bytes as h) is a dedicated area for starting recording of the cover text information file corresponding to the cover text, and is a slot not specified by the pointer P-TXIF (x). These slots are linked by link information so that a text information file corresponding to one text file can be handled even if it is larger than 7 bytes. The pointer P-EMPTY manages unused slots in a link form.

In this case as well, different AUX-TOs are used for the text name, recording date and time, and URL.
Although the C sector may be set and managed individually, the character information attached to the picture file by the AUX-TOC sector 5 may be collectively managed as a text information file, and the case of the information file may be controlled. Similarly, consideration is given to reducing the amount of data (the number of TOC sectors) required as management information.

6. Data File 6-1 Picture File Sector Two types of data files, a picture file and a text file, which are AUX data files managed by each AUX-TOC sector formed as described above, will be described.

First, as a picture file, a still image 1
The file length of each sheet is arbitrary. The image size as a still image is 640 × 480 dots, and the picture file is a JPEG format baseline. Since the picture file is managed by AUX-TOC, the bit stream of the file is
EOI (End Of Image) from I (Start Of Image) marker
Up to the marker. Also, in order to set the sector format to mode 2 and to have no 3rd layer ECC,
Effective bytes as image data capacity of one sector are 23
This is 24 bytes. As an example, assuming that a JPEG picture file is one cluster (= 32 sectors), the actual data size is 72045 (= 2324).
× 31 + 1) bytes to 74368 bytes (= 2324)
× 32).

The format of the sectors constituting such a picture file is as shown in FIG. 17, for example. At the beginning, a 16-byte header based on the synchronization pattern, cluster address, sector address, and mode information (02h) is provided, and the subsequent 8 bytes are undefined (Reserved). Then, as shown as data DP0 to DP2323, 2
An area is provided as a data area in which 324-byte image data is recorded. “00h” is recorded in the last four bytes, however, it is also conceivable to record an error detection parity.

6-2 Text File Sector Next, as a text file, ASCII, Mo defined by the text mode of AUX-TOC sector 4 are used.
dified ISO 8859-1, Music Shifted JIS, and other text data can be recorded.

The format of the sector constituting the text file is as shown in FIG. 18, for example, as in the case of the picture file, the header (16 bytes) from the beginning, undefined (R
An area (8 bytes) is provided, followed by a data area in which data of a 2324-byte text file is recorded as shown as data DT0 to DT2323. Each of the last four bytes contains “0”
"0h" is recorded, but error detection parity may be recorded.

FIG. 22 shows the data structure of the text file recorded in the text file sector.
However, the text file shown here is AUX-TOC
The data structure has a data structure corresponding to the case where the time stamp is set (d5 = '1') as the text mode of the sector 4. As shown in this figure, as a text file, “1Eh” indicating a delimiter for each text file is first arranged, and then a data unit (3 bytes pure binary) indicating a time stamp is arranged. The time stamp defines the display output timing of the text file synchronized with the reproduction of the corresponding audio track, and is indicated by the offset address of the corresponding audio track. Subsequently, a paragraph-length data unit (3 bytes pure binary) indicating the data length of the paragraph data unit is arranged.
Then, a data unit of a paragraph (substantial character information) is arranged and formed following the data of 1Fh.

7. Copying of AUX data 7-1 Operation example AUX data (sub data) according to the present embodiment based on the configuration and format of the recording / reproducing apparatus so far.
Will be described.

In copying the AUX data according to the present embodiment, data is copied via the buffer memory 13 as described later in detail. Here, as can be seen from the above description, in the disc 90 corresponding to the present embodiment, an area in which picture files (still images) for 38 clusters and an area in which data can be recorded as text is set as an AUX data area. Is done. This means that the data capacity is 2324 bytes × 32 sectors × 38 clusters = 282
5948 bytes = 2.8 Mbytes. In order to store all 2.8 Mbytes of AUX data in the buffer memory, a capacity of 22 Mbits or more is required. As an actual set, a buffer having a capacity of 32 Mbits or 24 Mbits of DRAM is used. Requires memory. However, hereafter,
For convenience of explanation, the description will be made assuming that the buffer memory 13 is configured by a 16 Mbit DRAM. However, in practice, a 16 Mbit RAM would require 2
Since it is possible to hold data having a capacity somewhat exceeding 7 clusters, it is considered that such a RAM capacity does not cause much problem in practical use.

FIG. 23 shows the structure in the buffer memory 13 when the capacity is set to 16 Mbits. It should be noted that the area structure shown in this figure corresponds to a normal time corresponding to the time of recording and reproducing audio data. If the buffer memory 13 has 16 Mbits, its data capacity is 2
097152 bytes. And one sector = 23
Since it is 68 bytes, 2097152/2368 (the number of bytes for one sector)
It can have 885 sectors, as represented by $ 885.6. As shown in FIG.
84 serial sector numbers can be provided. Then, in normal times, 16 sectors corresponding to serial sector numbers 0 to 15 are allocated as TOC areas. In the TOC area, TOC / U-TOC (P-TOC, U-TOC,
−TOC, AUX TOC).

An area of 869 sectors from sector serial numbers 16 to 884 is set as a main data area, and is set as an area for holding ATRAC data for recording and reproduction and AUX data. Given sector numbers by area for such an area structure,
As shown, the TOC area is provided with sector numbers 0 to 15, and the main data area is provided with sector numbers 0 to 8.
68 are provided.

Next, the address of the buffer memory will be described. Although there are various expression methods for the address for the memory, here, the expression will be made using a byte address. That is, the address A of the buffer memory 13
D is represented by AD = 940h × (sector number + α) + byte address. α indicates the number of sectors secured as the TOC area. If the buffer memory 13 has 16 Mbits, the address according to the above equation is 0 to 2097.
It is 512 bytes (0 to 200,000h in hexadecimal notation). As an address for the main data area, the main data area may be assigned an area serial number of 0 to 868, which is used as the address. These addresses 0 to 868 are 0 in hexadecimal notation.
３６364h.

Based on the structure of the buffer memory 13, a specific example of AUX data copy in the present embodiment will be described.

In the following description, the disc on which the AUX data as the copy source is recorded is referred to as “disc A”, and the disc as the copy destination (ie, the disc on which the AUX data of the disc A is copied) is described. Is referred to as “disk B”.

[0153] In addition to the picture file as the cover picture as the AUX data,
It is assumed that a total of five picture files of the picture files are recorded. Here, for convenience, Picture0 is used for the picture file of the cover picture, and Picture4 is used for the remaining four picture files.
Also referred to as 1-4. Further, although the address of the parts table is actually shown in the abbreviated form, in the parts table of FIG. 25, for the sake of convenience, the address in the unit of cluster or sector is described without using the abbreviated form. As described above, the address of a picture file is specified in units up to a sector.

FIG. 25 shows an example of the data contents of the AUX-TOC sector 1 of the disk A. In this case, "00" is stored in clusterH as the cluster address of the header.
h ”is recorded, and“ 07h-09 ”is recorded in clusterL.
h ”is recorded. Also, First PN
“01h” and “04h” are recorded as O and Last PNO, respectively.

In this case, Picture 0 (the cover picture) is indicated by its A in the parts table (OOh).
The start address and end address of the recording area in the UX data area are shown. In this case, as the start address, cluster “0Bh”, sector “00h”
The end address is set to cluster “0Bh” and sector “1Fh”. That is, the cover picture in this case is exactly one cluster in size.

In this case, the part table (01h) is indicated by the pointer P-PNO1, so that the part table (01h) is displayed.
h) indicates the start address (cluster “0Ch”, sector “00h”) and end address (cluster “0Ch”, sector “1Ah”) of Picture1. In this case, the data size of Picture 1 is 2
The number of sectors is less than one cluster (= 32 sectors). Therefore, the sectors “1Bh” to “1FH” in the cluster “0Ch” are free areas. The management of the free area will be described later. In the parts table (02h) indicated by the pointer P-PNO2, the start address (cluster “0Dh”, sector “00h”) and end address (cluster “0Dh”, sector “18h”) of Picture2 are indicated. Also in this case, the data size of Picture 1 is 2
Seven sectors are less than one cluster. Therefore, sectors “19h” to “19D” in cluster “0Dh”
“1Fh” is a free area.

The part table (03h) indicated by the pointer P-PNO3 has a start address (cluster “0Eh”, sector “00h”) and an end address (cluster “0Fh”, sector “0Fh”) of Picture3.
Is shown. Picture 3 is an example in which the data size is set to 48 sectors and becomes one cluster or more and less than two clusters. Therefore, the sectors “10h” to “1Fh” in the cluster “0Fh” become free areas.

The parts table (04h) indicated by the pointer P-PNO4 contains the start address of Picture4 (cluster “10h”, sector “00h”).
End address (cluster “10h”, sector “1F”
h ") is indicated. This Picture 4 has a data size of 32 sectors and is just one cluster. Therefore, there is no free area in the cluster “10h”.

Further, as described above, the fourth byte of each part table contains S.D. Pict. The mode is set to d1-d2
The copy status is indicated by two bits consisting of
9 (a)) is the value of Picture 0 to Picture 4 in this case.
S. Pict. The mode (copy status) is the fourth one of the part tables (00h) to (04h) in FIG.
It is assumed that the setting is made as shown in the byte (indicated by hatching). That is, Picture 0 is S. Pict. By setting the mode to “01h” (d1−d2 = 1h), it is indicated that “copying is permitted only once”. Pic
cure1 is S.T. Pict. "00h" (d1
By setting -d2 = 0h, it is indicated that "copy permitted". Picture 2 is S.P. Pict. The mode “02h” (d1−d2 = 2h) indicates that “copying is permitted only once through the authenticated bus.” Both Picture 3 and Picture 4 are “S.Pict. 03h "(d1-d2 = 3h, indicating" copy prohibited ".

In this case, the pointer P-PFRA indicates the parts table (05h). And, in the parts table (05h), P
start address “0Ch” and sector “1B” of the free area in the cluster where the image1 is recorded
h ") and end address (cluster" 0Ch ", sector" 1Fh "). Then, the link information indicates that the link is made to the parts table (06h).
The start address (“0Dh”, sector “19h”) and the end address (cluster “0Dh”, sector “1Fh”) of the free area in the cluster where Picture2 is recorded are recorded in the part table (06h), and the link is linked. The information indicates a link to the parts table (07h). Then, in the parts table (07h), the start address “0Fh” and the sector “10h” of the free area in the latter cluster (“0Fh”) of the two clusters in which Picture 3 is recorded, and the end address (cluster “ 0Fh ”, sector“ 1F ”
h ") is recorded. That is, the free area of the cluster in which each picture file is recorded is linked and managed as a free area. Then, since there is no free area link after the parts table (07h), the link information is "00h". In this case, since the parts table (08h) and subsequent parts are unused, the parts table (08h) is indicated by the pointer P-EMPTY as shown in the figure, and the parts tables (08h) to (63h) are displayed. Are linked by link information.

First, the user operates the AUX-TO shown in FIG.
A disk A (copy source disk) on which AUX data is recorded as shown in C sector 1 is loaded into the recording / reproducing apparatus of the present embodiment. As a result, the disk A is stored in the TOC area of the buffer memory 13 shown in FIG.
And the TOC and U-TOC (including the AUX-UTOC sector 1 having the contents shown in FIG. 25) read from are written and held.

Thereafter, it is assumed that, for example, the user performs a predetermined operation on the operation unit 23 to enter the AUX data copy mode. Then, the recording / reproducing apparatus reads the AUX data serving as a copy candidate from the disk A, and stores the AUX data in the buffer memory 13 as described below.

FIG. 24 shows a buffer memory 1 for storing AUX data in the AUX data copy mode.
3 shows an area structure and an example of data mapping. First, when storing the AUX data, an area of 8 sectors from address 0h to 07h is allocated as a memory TOC area following the TOC area of 16 sectors, and an area of 357 sectors from address 08h to 364h is main data. Area.

The memory TOC area stores the AUX data held in the main data area of the buffer memory 13,
This is an area in which a memory TOC for managing the buffer memory 13 using an address set is stored. In this case, it is assumed that information of the memory TOC is stored in a sector at an address 1h indicated by oblique lines. This memory TOC is generated by the system controller 11 in accordance with the holding state of the AUX data in the main data area.

In the main data area of FIG. 24, the AUX data (Picture 0
4) shows a state in which is loaded and held. In this case, Picture0 having a size of one sector is held in an area for 32 sectors at addresses 8h to 27h. Thereafter, Picture1 (size: 27 sectors) is held in an area corresponding to 27 sectors at addresses 28h to 42h, Picture2 (size: 25 sectors) is held in an area corresponding to 25 sectors at addresses 43h to 5Bh, and Picture3 (size: 27 sectors). 48 sectors) are held in an area for 48 sectors at addresses 43h to 5Bh, and Picture4 (size: 32 sectors) is held in an area for 32 sectors at addresses 8Ch to ABh.

As described above, the memory TOC is a table for managing data in the main data area. As described above, the memory TOC corresponding to the state in which the picture files of Picture 0 to Picture 4 are held.
FIG. 26 shows an example of the contents.

Various data structures can be considered as the data structure of the memory TOC, but here, for example, AUX-TOC
It has substantially the same structure as the sector 1, and the management form in the table is also based on the AUX-TOC sector 1. However, for the purpose of managing the area of the buffer memory 13, it is not necessary to represent addresses in units of clusters, sectors, and sound groups as in the AUX-TOC sector 1. For this reason, in the memory TOC,
Of the three bytes where the address is described in the table part, the leading one byte is set to ALL '0', and the following lower two bytes (16 bits) are used. As a result, addresses of 0 to 65535 sectors can be specified at the maximum. As described above, in the case of the buffer memory 13 of 16 M bits, the main data area is 0 to 8
Since it is set to 68 (0h to 364h), there is no problem in expressing the address by 2 bytes.

In FIG. 26, for example, in the pointer section, the parts table (01h) is indicated by the pointer P-PNO1, and the parts table (01h) has the Picture1 recorded in the main data area of the buffer memory 13.
The start address and the end address are shown.
Similarly, the parts table (02
h), and the part table (02h) shows Picture
2, the start address and the end address are shown. The parts table (03h) is indicated by the pointer P-PNO3, and the parts table (03h) indicates the start address and end address of the Picture3. The parts table (04h) is indicated by the pointer P-PNO4, and the parts table (04h) is displayed.
h) indicates the start address and end address of Picture4. In the parts table (00h) not specified by the pointer P-PNO (x), the start address and the end address of the cover picture Picture0 on the buffer memory are indicated.

AUX-TOC is stored in the memory TOC.
S.1 recorded in the parts table of sector 1 Pic
t. The mode (ie, copy status information) is reflected. That is, in each of the parts tables corresponding to Pictures 0 to 4 in FIG.
ict. Mode), as shown in FIG. Pict. The mode information is stored so as to be copied.

In the memory TOC in this case, the free area and the unused parts table in the memory TOC are not managed by the pointers P-PFRA and P-EMPTY, and are simplified. However, the pointer P-PFR
A, Management by P-EMPTY may be performed.

When the AUX data is loaded from the disk A and taken into the buffer memory 13, the data contents held in the buffer memory 13 are as described in FIG.
4 and FIG. 25. After that, the user ejects the disc A from the recording / reproducing apparatus and ejects it, and loads the disc B as a copy destination into the recording / reproducing apparatus.

Here, it is assumed that three picture files (one of which is a cover picture) are recorded on the disc B as AUX data. AUX-TOC sector 0 and AUX of disk B which are assumed to correspond to this
27 and 28 show the data contents of the -TOC sector 1 respectively.

First, the AUX-TOC sector 1 shown in FIG.
It will be explained first. The three picture files recorded on the disc B are referred to as Pict for convenience.
ure5,6,7. In this case, "00" is stored in clusterH as the cluster address of the header.
h ”is recorded, and“ 07h-09 ”is recorded in clusterL.
h ”is recorded. Also, First PN
“01h” and “02h” are recorded as O and Last PNO, respectively.

Picture 5 (cover picture) indicates the start address and end address of the recording area within the AUX data area in the parts table (00h). In this case, the start address is cluster “0Bh” and sector “00h”, and the end address is cluster “0Bh” and sector “1Ah”. In this case, the cover picture has 27 sectors and is smaller than one cluster. Therefore, sectors “1Bh” to “1F” in cluster “0Bh”
“H” is a free area. Also, this parts table
S.00 shown in the fourth byte of (00h) Pict. The mode is “00h”. In other words, Picture
5 is permitted to be copied.

Then, the part table (01h) is indicated by the pointer P-PNO1, so that the start address (cluster “0Ch”, sector “00h”) and end address (cluster “00h”) of Picture 6 are stored in the part table (01h). 0Ch ”, sector“ 1Fh ”). That is, the data size of this Picture 6 is 3
Two sectors (= 1 cluster) are used. Therefore, there is no free area in the cluster “0Ch”.
In addition, S.P. of the parts table (01h) (Picture 6)
Pict. The mode is set to “03h” (copy prohibited).

The part table (02h) indicated by the pointer P-PNO2 contains the start address of the Picture 7 (cluster “0Dh”, sector “00h”).
End address (cluster “0Dh”, sector “1F
h ") is indicated. The data size of this Picture 7 is also 32 sectors (= 1 cluster), and there is no free area in the cluster “0Dh”. Parts table (02h) (Picture 7) S. Pict. The mode is set to “03h” (copy prohibited).

In this case, the pointer P-PFRA points to the parts table (03h). Then, in the parts table (03h), the start address “0Bh” of the free area in the cluster in which Picture 5 is recorded and the sector “1B”
h ”) and end address (cluster“ 0Bh ”, sector“ 1Fh ”). Since there is no free area for the pictures 6 and 7, the link information of the parts table (03h) is set to "00h". And
In this case, since the parts table (04h) and subsequent parts are unused, the parts table (04h) is indicated by the pointer P-EMPTY as shown in the figure, and the unused parts tables (04h) to (63h) Are linked by link information.

FIG. 27 shows the contents of AUX-TOC sector 0 of disk B. In this case, the pointer P-
The part table (01h) is specified by BLANK, and the free area (AUX-TOC sector 1 managed by the AUX-TOC sector 1) in the AUX data area corresponds to the part table (01h).
Start address (cluster “0Eh”, sector “00h”) and end address (cluster “2E”) of the UX data (other than the recording area of Picture 5, 6, 7)
h ", sector" 00h "). The address of the cluster “2Eh” is the cluster 46 shown in FIG.
(The last cluster of the AUX data area). The parts table (02h) is indicated by the pointer P-EMPTY, and the unused parts tables (02h) to (63h) are linked by link information.

When the disc B on which the AUX data is recorded is loaded into the recording / reproducing apparatus as described above, for example, in the recording / reproducing apparatus, first, the TOC,
The U-TOC information is read. At this stage, the TOC and U-TOC of the disk A are stored in the TOC area of the buffer memory 13 or the contents of the TOC and U-TOC of the disk A are cleared. In the recording / reproducing apparatus, if the TOC and U-TOC of the disc A are still stored, they are cleared, and the TOC and U-TOC newly read from the disc B are written. In other words, when the disk A is loaded from the disk A, the contents of the TOC and U-TOC of the disk B are stored in the TOC area of the buffer memory 13 instead of the disk A. This rewriting process for the TOC area is realized by the memory controller writing data to the buffer memory 13 under the control process of the system controller 11. At this stage, naturally, five picture files of Picture0 to Picture4 in the main data area of the buffer memory 13 (see FIG. 24) and a table of the memory TOC in the memory TOC area for managing the picture files (see FIG. 24). FIG.
Is still held.

In this state, if the user performs an operation for starting copying, for example, the recording / reproducing apparatus replaces the AUX data held in the main data area of the buffer memory 13 with the AUX data of the disk B. The operation for copying an empty area (free area) is started.

However, in this embodiment, when copying the AUX data to the copy destination disk, the memory T
The contents of the copy status (S. Pict. Mode) reflected in the OC are referred to, only the copyable files are copied in compliance with the contents of the copy status, and after the copy, the copied files are copied. The copy status to be given to the user is updated according to the table contents described with reference to FIG.

More specifically, Picture 0 to AUX data of the disk A held in the buffer memory 13
4 is the five picture files, S.4 in FIG. Pic
t. As shown in the mode, the files that can be copied at least once are Picture 0, Picture 3 and Picture 3, and Picture 3 and Picture 4 are copy prohibited (S. Pict. Mode = 03h). Therefore, in this case, Pictures 0, 1, and 2 are selected as the files that can be copied, and the pictures 3 and 4 are not copied.

Then, Pict is stored in the buffer memory 13.
If ure0, ure0 and ure1 are read and these files are copied to the disc B (that is, additional recording to the AUX data area), the files are first stored in the TOC area according to the copy result. T of disk B
The contents of OC and U-TOC will be updated. Here, the contents of the updated AUX-TOC sectors 0 and 1 of the disk B are shown in FIGS. 29 and 30, and the contents of the AUX-TOC sector 1 are shown first.

AU of disk B after copying shown in FIG.
As the X-TOC sector 1, AUX is used for Picture5 to Picture7 which have been recorded before copying.
Picture0, Picture0,
Management is performed in a state where 1 and 2 are recorded.

That is, for Picture 5 and Picture 6, 7 which are cover pictures of the disc B, the AUX-T of the disc B before copying shown in FIG.
It is managed in the same manner as in the OC sector 1.

The parts table (03h) is indicated by the pointer P-PNO3.
The start address (cluster “0Eh”, sector “00”) on the AUX area in which
h ") and the end address (cluster" 0Eh ", sector" 1Fh "). From this content Pictur
It can be seen that the data of e0 is recorded in an area of one cluster (= 32 sectors) following Picture 7 on the AUX area. Also, the cluster “0Eh”
Does not have a free area. And S. of this parts table (03h) Pict. Mode, Pict
As the copy status to be given to ure0, the copy status of Picture0 before copying is “01”.
h "(copying permitted only once)
The record is updated to "03h" (copy prohibited). In addition, in FIG. 30, the above-mentioned Picture0,
And S. in the parts tables (03h), (04h), and (05h) corresponding to Pictures 1 and 2 described below. Pict. The byte position of the mode is indicated by hatching.

In the parts table (04h) indicated by the pointer P-PNO4, the start address (cluster “0Fh”, sector “0
0h ”) and an end address (cluster“ 0Fh ”, sector“ 1Ah ”). For this reason, the free area starts from sector “1Bh” in cluster “0Fh”.
“1Fh” is a free area. And this Pic
The copy status (S.Pict. mode of the parts table (04h)) to be given to the T.ture1 is P before copying.
Since the copy status of the image 1 is "00h" (copy permitted), "00h"
h ”(copy permitted) is recorded.

In the parts table (05h) indicated by the following pointer P-PNO5, the start address where the picture 2 is recorded (cluster “10h”, sector “00”)
h ") and the end address (cluster" 10h ", sector" 18h "). Therefore, the cluster "10
The free areas are the sectors “19h” to “1Fh” in “h”. As the copy status to be given to this Picture 2 (S. Pict. Mode of the parts table (05h)), the copy status of Picture 2 before copying is "02h" (copying is permitted only once via an authenticated bus). Therefore, it is updated to “03h” (copy prohibited) and recording is performed.

In this case, the pointer P-PFRA points to the parts table (06h). In this parts table (06h), P
start address (“0Bh”, sector “1Bh”) and end address (cluster “0B”) of the free area in the cluster where the image5 (cover picture) is recorded
h ", sector" 1Fh "). Further, the start address (“0F”) of the free area in the cluster where Picture 1 is recorded is stored in the parts table (07h).
h, sector "1Bh") and end address (cluster "0Fh", sector "1Fh"), and the start address ("10") of the free area in the cluster where Picture2 is recorded is recorded in the parts table (08h).
h ", sector" 19h "), and end address (cluster" 10h ", sector" 1Fh "). These parts tables (06h), (07h), and (08h) are linked and managed by link information. Since there is no link in the free area after the parts table (08h), “00h” is recorded in the link information of the parts table (08h).

The parts table (09h) is indicated by the pointer P-EMPTY.
(63h) are linked by link information.

Next, FIG. 29 shows the contents of AUX-TOC sector 0 of disk B updated after AUX data copying.
This will be described below. In this case, the area after the picture 2 data end is managed as a free area. Here, the part table is indicated by the pointer P-BLANK.
(01h) is specified, and AU is added to the parts table (01h).
A free area in the X data area (AUX data (Picture managed by AUX-TOC sector 1)
5, 6, 7, 0, 1, 2) start address (cluster “11h”, sector “00”)
h ”) and end address (cluster“ 2Eh ”, sector“ 00h ”). And the pointer P-EMPTY
Indicates a parts table (02h), and unused parts tables (02h) to (63h) are linked by link information.

The TOC and U-TOC contents in the TOC area of the buffer memory 13 including the AUX-TOC sectors 0 and 1 of the disk B updated as described above are currently loaded at required timing. Recording is performed on the management area of the disc B. That is, the TOC and U-TOC contents of the disc B are rewritten.

7-2 Processing Operations Next, processing operations to be executed by the system controller 11 for implementing AUX data copying according to the above-described embodiment will be described with reference to the flowcharts of FIGS. I do. FIG. 31 shows a processing operation for reading AUX data from the loaded copy source disk in the AUX data copy mode and storing the data in the buffer memory 13.

It should be noted that FIG. 31 and FIGS.
In the processing according to, for the sake of convenience of description, it is assumed that only a picture file is to be copied as AUX data, but even when a text file is recorded as AUX data, the processing is realized according to the processing described below. It is made possible. At the stage when this process is started, it is assumed that the TOC and U-TOC already read from the copy source disk have been stored in the TOC area of the buffer memory 13.
24 also corresponds to the AUX data copy.
Is set in the form shown in FIG.

In the routine shown in FIG. 31, first,
In step S101, the contents held in the memory TOC area in the buffer memory 13 are initialized. Then, the process proceeds to step S102.

In step S102, by checking the contents of the AUX-TOC sector 1 held in the TOC area, it is determined whether or not a file as a cover picture exists.
This is the AUX-TOC sector 1 parts table (0
For 0h), it can be determined by checking whether or not an address is recorded. If a negative result is obtained in step S102, the process proceeds to step S108, but if a positive result is obtained, step S103 is performed.
Proceed to.

In step S103, a sector number is set as a write pointer into the buffer memory. That is, assuming that the write pointer is N1, the address 08h of the first sector of the main data area is set to N1 = 0.
Set as 8h.

In the following step S104, a cover picture is read from the AUX data area of the copy source disk and written to the main data area of the buffer memory 13. At this time, data writing is started from the address (08h) indicated by the write pointer N1. Then, in the next step S105, the process waits until the writing to the buffer memory 13 ends.

If it is determined in step S105 that the writing of the cover picture into the buffer memory 13 has been completed, the flow shifts to step S106. In step S106, the buffer memory 13
Is set to N2 as the end address of the cover picture file written in.

In the following step S107, the contents of the memory TOC are updated so as to reflect the result of writing the cover picture. That is, by writing N1 obtained in step S103 as a start address and N2 obtained in step S106 as an end address in the parts table (00h) in the table section of the memory TOC, the buffer is stored in step S104. The picture file written on the memory 13 is managed as a cover picture. In addition, the current T
AUX-TOC sector 1 held in OC area
Corresponding to the cover picture in S. Pict. The value of the mode is set in S.M. in the parts table (00h) corresponding to the cover picture on the memory TOC. Pict. Copying is done as the mode value. After this processing, step S1
08.

Step S108 and subsequent steps are processing for writing a picture file other than the cover picture into the buffer memory. In step S108, the end picture number (the last picture number, AUX-
It is determined whether or not (the last PNO in the TOC sector 1 can be identified by referring to the Last PNO) is 1 or more.
In this case, a positive result is obtained if there is at least one picture file other than the cover picture, and a negative result is obtained if there is no picture file other than the cover picture. If a negative result is obtained, there is no picture file to be loaded in the buffer memory 13, and the process is terminated as it is. However, if a positive result is obtained,
Proceed to step S109.

In step S109, the variable n indicating the picture number (corresponding to P-PNO (n))
Set to 1. Then, in the next step S110, N1 = N2 + 1 is set as the write pointer N1 for the buffer memory 13. N2 is the end address of the picture file written in the buffer memory 13 immediately before. Therefore, N1 obtained in step S110 is the address (corresponding to the start address of the unrecorded area) immediately after the end address of the picture file written immediately before.

Then, in the next step S111, the picture (n) file is read from the disk, and the writing to the buffer memory 13 is performed until the end is determined in step S112. At this time, writing is started from the write pointer N1 set in step S110. In step S112, the buffer memory 13 of the Picture (n) file
If it is determined that the writing to has been completed, the process proceeds to step S113.

In step S113, the end address of the picture file written in the buffer memory 13 by the process in step S111 is set as N2. Then, in the next step S114, the contents of the memory TOC are updated so as to reflect the result of writing the picture file. This processing conforms to the previous step S107. That is, the pointer P-PNO
A value for designating a required parts table is written in (n), and the designated step
N1 obtained in 110 is written as a start address, and N2 obtained in step S113 is written as an end address. Further, the AUX currently held in the TOC area
S. corresponding to Picture (n) in TOC sector 1; Pict. The value of the mode is stored in the part table corresponding to Picture (n) on the memory TOC in the S.D. Pict. Copy as mode value. After this processing, the process proceeds to step S115.

In step S115, it is determined whether or not the current variable n matches the end picture number. Here, the case where a negative result is obtained means that the buffer memory 1 is not yet stored among the picture files recorded as AUX data on the copy source disk.
3 means that there is a file that has not been loaded. Therefore, in this case, after the variable n is incremented to n = n + 1 in step S116, the process returns to step S110. By executing the processing so far, specifically, the contents of the memory TOC as shown in FIG. 26 are formed stepwise.

On the other hand, the case where an affirmative result is obtained in step S115 means that AU is
This means that all picture files recorded as X data have been loaded into the buffer memory 13. Therefore, in this case, the processing shown in this figure is ended. When the loading of the actual AUX data into the buffer memory is completed, for example, a display or a voice message is output to inform the user of the completion of the data loading and to prompt the exchange of the copy source disk to the copy destination disk. It is preferable to do so.

[0207] Further, under the condition that the capacity of the actual main data area of the buffer memory 13 is small and, for example, all the files as AUX data recorded on the copy source disk cannot be loaded, the possibility is high. Although a detailed description of the configuration is omitted, for example, it is conceivable that the configuration is such that a user can select a file of AUX data that the user wants to load in a stage before loading.

FIG. 32 and FIG.
2 shows a processing operation for copying (recording) the AUX data (picture file) loaded and held in the destination disk to the copy destination disk. At this stage, the copy destination disk has already been loaded in place of the copy source disk, and the TOC area of the buffer memory 13 includes the TOC and U-TO of the copy destination disk from the copy source disk.
It is assumed that C has been rewritten.

For example, if the user performs an operation for starting AUX data copy, the system controller 11 proceeds to step S201 in FIG. In step S201, the TOC of the buffer memory 13
Referring to AUX-TOC sector 0 in the area, it is determined in subsequent step S202 whether or not an empty area (free area indicated by pointer P-BLANK) exists in the copy destination disk. If it is determined that there is no free area, the process proceeds to step S226 in FIG. 33 described below.
Proceed to step S203.

At step S203, the memory TO
The content of C is checked, and it is determined in step S204 whether or not a cover picture exists. This is the parts table (00h) in the table section of the memory TOC.
Can be determined by identifying whether or not an address is recorded in the. If a negative result is obtained in step S204, the process proceeds to step S212 in FIG. 33, but if a positive result is obtained, the process proceeds to step S205.

At step S205, the memory TO
From the contents of C, the copy status of the cover picture (S. Pic
t. Mode), and it is determined in step S206 whether the cover picture can be copied. In other words, if the copy status is any one of "0h", "1h", and "2h", copying is possible, and if it is "03h", copying is disabled. If it is determined in step S206 that copying is not possible, the process proceeds to step S212 in FIG. 33. If it is determined that copying is possible, the process proceeds to step S207.

In step S207, a read pointer is set at the head of the main data area in the buffer memory 13. Then, in the subsequent step S208, reading of the file is started from the read pointer set in the previous step S207, and the read data is recorded in the free area of the AUX area of the copy destination disk. As a result, file data as a cover picture is recorded. The process in step S208 is executed until it is determined in step S209 that the recording of the file has been completed.
If it is determined in step S209 that the copy (recording) of the cover picture file has been completed, the process proceeds to step S210.

In step S210, AUX-TOC sector 1 in the TOC area of the buffer memory 13 is determined in accordance with the result of copying the cover picture file so far.
Update the contents of At this time, the copy status corresponding to the copied cover picture is updated according to the table contents described with reference to FIG. Step S
After 210, the process moves to step S211 in FIG.

In step S211, the TOC of the buffer memory 13 is stored in accordance with the result of copying the cover picture file.
Update the contents of AUX-TOC sector 0 in the area. That is, rewriting is performed so as to manage a free area that is changed according to the recording of the cover picture file. Thereafter, the process proceeds to step S212.

In step S212, the contents of the memory TOC are checked again, and in the following step S213, it is determined whether or not there is a picture file stored in the buffer memory other than the cover picture.
This determination is based on the pointer P-PNO in the memory TOC.
For (n), this can be achieved by identifying whether or not there is an area storing a value other than “00h”.

In step S213, if a negative result is obtained, the process proceeds to step S225 described later, but if a positive result is obtained, the process proceeds to step S214. In step S214, the variable n indicating the picture number is set to n = 1, and the process proceeds to step S215.

In step S215, the AUX-TOC sector 0 of the buffer memory 13 is checked, and in the next step S216, it is determined whether or not a free area exists. If a negative result is obtained in step S216, the process proceeds to step S225, but if a positive result is obtained, the process proceeds to step S217.

At step S217, the memory TO
The copy status (S.Pict. Mode) corresponding to Picture (n) is checked from the contents of C, and it is determined in subsequent step S218 whether Picture (n) can be copied. If it is determined in step S218 that copying is not possible, the process proceeds to step S223 described below. If it is determined that copying is possible, the process proceeds to step S219.

In step S219, a read pointer is set at the head of Picture (n) (ie, start address) in buffer memory 13. Then, in the subsequent step S220, P is read from the read pointer set in step S219.
The readout of the image (n) is started, and the read out data is recorded in the free area of the AUX area of the copy destination disk. The process of step S220 is also performed until it is determined in step S221 that the recording of the file has been completed. If it is determined that the copying (recording) of the file of the cover picture has been completed, the process proceeds to step S222. .

In step S222, the previous step S2
The contents of the AUX-TOC sector 1 in the TOC area of the buffer memory 13 are updated in accordance with the result of the copy of Picture (n) performed in the process of 20. At this time, the copy status is updated in accordance with the table contents described with reference to FIG. In step S222, according to the copy result of Picture (n), A in the TOC area of the buffer memory 13 is
The contents of the UX-TOC sector 0 are also updated. That is, P
The rewriting is performed so as to manage the free area that is changed according to the additional record (n). After this,
The process moves to step S223.

In step S223, it is determined whether or not the variable n matches the end picture number (LastPNO). Here, the case where a positive result is obtained is a case where it is determined that there is no more picture file to be a copy target candidate in the buffer memory 13. In this case, the process proceeds to step S <b> 225. On the other hand, if a negative result is obtained, a picture file that is still a copy target candidate is stored in the buffer memory 1.
3, the variable n is determined in step S224.
Is incremented to n = n + 1, and then the process returns to step S215. By executing the processing in this way, a picture file that can be copied in accordance with the copy status is selected from the picture files held in the buffer memory 13 and recorded (copied) on the copy destination disk. Will be done. For the copied picture file, AUX-UTOC sector 1 (buffer memory 1)
3 is held in the TOC area), each file has a corresponding copy status (S. Pict. Mode)
As the contents before copying (S.Pic in the memory TOC)
t. Mode), the updated value is stored.

In step S225, TOC, U-
The TOC (including the AUX-UTOC sectors 0 and 1) is recorded in the management area of the copy destination disk. That is, the management area of the copy destination disk is updated so that the content corresponds to the copy result. In addition, TOC, U-
Of the TOC information, at least only the AUX-UTOC sectors 0 and 1 that are considered to be updated may be updated (recorded). Step S22
After the end of the process in the step 5, the process shifts to a step S226.

At step S226, for example, AU
Control is performed so that display or audio output for notifying the user that the copying of the X data has been completed is performed, and this processing ends.

Note that the AUX shown in the above embodiment has been described.
The data management form is an example, and if the address and copy status of each AUX data file are managed, the present invention can be applied even if other file management forms are used. Is done. Although the embodiment has been described with respect to the mini-disc system, the present invention can be widely applied to various other recording and reproducing systems.

[0225]

As described above, according to the present invention, the above-mentioned sub-data is stored in a recording medium in which sub-data such as images and character information are recorded together with their management information together with main data such as audio data. As a configuration for copying, a file of sub data read from a copy source recording medium loaded in a recordable / reproducible part is stored in a storage means (storage area), and then a copy destination loaded in the recordable / reproducible part is stored. The recording medium is configured to record the file of the sub data read from the storage means. For example, in the conventional system, two recording / reproducing apparatuses corresponding to the recording medium according to the present invention are prepared and connected via a data bus, or a personal computer and a recording / reproducing apparatus are connected to each other. Although it is necessary to copy the data, according to the present invention, it is possible to copy the sub data by one recording and reproducing device. This allows the user to copy the sub-data without having to own two recording / reproducing devices or personal computers, thereby reducing the economical burden and copying the sub-data with a simple operation. Will be able to do that.

Further, even if a copy status (copy management information) is attached to a data file, generally once copied into a personal computer or the like, the copy status information is often ignored. Even if copying of a certain data file is prohibited, copying may be possible. On the other hand, according to the present invention, a copyable data file is selected based on the copy status (copy management information) set for each data file of the sub data, and only the selected data file is recorded on the copy destination disk. With this configuration, the data file can be copied in compliance with the copy status given to the data file. Similarly, based on the contents of the copy status (copy management information) before copying set for each data file of the sub data, a copy status in which the contents are updated is set for the copied data file. With this configuration, an appropriate copy status is reflected in the copied data file, so that a copy operation that complies with the copy status can be obtained.

[Brief description of the drawings]

FIG. 1 is a block diagram of a recording and reproducing apparatus according to an embodiment of the present invention.

FIG. 2 is an explanatory diagram of a sector format of a disk according to the embodiment;

FIG. 3 is an explanatory diagram of an address format of a disk according to the embodiment;

FIG. 4 is an explanatory diagram of an example of a disk address according to the embodiment;

FIG. 5 is an explanatory diagram of an area structure of a disk according to the embodiment;

FIG. 6 is an explanatory diagram of a U-TOC sector 0 according to the embodiment.

FIG. 7 is an explanatory diagram of a link configuration of U-TOC sector 0 according to the embodiment.

FIG. 8 is an explanatory diagram of a U-TOC sector 1 of the embodiment.

FIG. 9 is an explanatory diagram of a U-TOC sector 2 of the embodiment.

FIG. 10 is an explanatory diagram of a U-TOC sector 4 according to the embodiment.

FIG. 11 is an explanatory diagram of AUX-TOC sector 0 of the embodiment.

FIG. 12 is an explanatory diagram of an AUX-TOC sector 1 of the embodiment.

FIG. 13 is an explanatory diagram of an AUX-TOC sector 2 of the embodiment.

FIG. 14 is an explanatory diagram of an AUX-TOC sector 3 of the embodiment.

FIG. 15 is an explanatory diagram of an AUX-TOC sector 4 of the embodiment.

FIG. 16 is an explanatory diagram of an AUX-TOC sector 5 according to the embodiment.

FIG. 17 is an explanatory diagram of a picture file sector according to the embodiment.

FIG. 18 is an explanatory diagram of a text file sector according to the embodiment.

FIG. 19 is an explanatory diagram illustrating a copy status and a copy status update table according to the embodiment;

FIG. 20 is an explanatory diagram showing a data structure of a picture (text) information file.

FIG. 21 is an explanatory diagram showing definition contents of a text mode.

FIG. 22 is an explanatory diagram showing the data structure of a text file (when a time stamp is present).

FIG. 23 is an explanatory diagram showing an area structure of a buffer memory during normal operation together with addresses.

FIG. 24 is an explanatory diagram showing an area structure of a buffer memory together with addresses in an AUX data copy mode.

FIG. 25 shows AUX- of disk A (copy source disk).
FIG. 4 is an explanatory diagram showing an example of the contents of a TOC sector 1;

FIG. 26 is an explanatory diagram showing an example of the contents of a memory TOC formed after loading AUX data on a disk A;

FIG. 27 shows AUX- of disk B (copy destination disk).
FIG. 9 is an explanatory diagram showing an example of contents of TOC sector 0 (before copying).

FIG. 28 is an explanatory diagram showing an example of contents of AUX-TOC sector 1 of disk B (before copying).

FIG. 29 shows AUX- of disk B (copy destination disk).
FIG. 4 is an explanatory diagram showing an example of contents of TOC sector 0 (after copying).

FIG. 30 shows AUX- of disk B (copy destination disk).
FIG. 9 is an explanatory diagram showing an example of contents of TOC sector 1 (after copying).

FIG. 31 is a flowchart showing a processing operation for loading AUX data of a copy destination disk into a buffer memory.

FIG. 32 shows a copy target A held in the buffer memory.
9 is a flowchart showing a processing operation for recording UX data on a copy destination disk.

FIG. 33 shows a copy target A held in the buffer memory.
9 is a flowchart showing a processing operation for recording UX data on a copy destination disk.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Recording / reproducing apparatus, 3 optical head, 6a magnetic head, 8 encoder / decoder part, 9 servo circuit, 1
1 system controller, 12 memory controller, 13 buffer memory, 14 encoder / decoder section, 23 operation section, 24 display section, 25 interface section, 26 JPEG decoder, 90 disk

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Tsutomu Harada 6-35 Kita-Shinagawa, Shinagawa-ku, Tokyo F-term in Sony Corporation (reference) 5D044 AB05 AB08 AB09 BC06 CC04 DE27 DE50 DE54 HL08 5D110 AA19 CA32 CB04

Claims (10)

[Claims] 1. A program area for recording main data having temporal continuity as one or a plurality of programs, and a recording, reproducing, or editing operation for one or a plurality of programs as main data recorded in the program area A main data management area for recording main data management information for managing data, a sub data area for recording sub data as data independent of each program as the main data as one or a plurality of data files, A sub-data management area for recording sub-data management information for managing recording, reproducing, or editing operations for one or more data files as sub-data recorded in the area, and Copy the data file as the sub data recorded on the recording medium to the copy destination recording medium. As a copying method, a data read / storage process capable of reading at least the sub data from the copy source recording medium loaded in the data recordable / reproducible site and storing the data in a predetermined storage area; A recording medium loaded after being ejected from the data recording / reproducing portion is set as a copy destination recording medium, and a data file as sub data stored in the storage area is stored in the sub data area of the copy destination recording medium. And a recording control process capable of recording all or a part thereof. 2. The method according to claim 1, wherein copy management information for managing copy permission / non-permission for each data file as sub data is set as the sub data management information, and the data read / store is performed. As the process, at least the sub-data and the sub-data management information can be read from the copy source recording medium loaded in the data recording / reproducing portion and can be stored in the storage area. As the recording control process, Based on the copy management information in the sub-data management information stored in the storage area, a copyable data file is selected from among data files as sub-data stored in the storage area, and the selected The data file is configured to be recorded in the sub data area of the copy destination recording medium. Data copying method according to claim 1, wherein. 3. The data read / storage based on copy control information for managing permission / non-permission of copy for each data file as sub data as the sub data management information. As the process, at least the sub-data and the sub-data management information can be read from the copy source recording medium loaded in the data recording / reproducing portion and can be stored in the storage area. As the recording control process, When recording a data file as sub-data stored in the storage area in the sub-data area of the copy destination recording medium, based on the copy management information in the sub-data management information stored in the storage area To update the copy management information in the sub-data management information of the copy destination recording medium. Data copying method according to claim 1, characterized in that it is configured to be able to execute control of the order. 4. The data copying method according to claim 1, wherein the main data is audio data, and the data file as the sub data is image data. 5. The data copying method according to claim 1, wherein the main data is audio data, and the data file as the sub data is character data. 6. A program area for recording main data having temporal continuity as one or a plurality of programs, and a recording, reproducing or editing operation for one or a plurality of programs as main data recorded in the program area A main data management area for recording main data management information for managing data, a sub data area for recording sub data as data independent of each program as the main data as one or a plurality of data files, A sub-data management area for recording sub-data management information for managing recording, reproducing, or editing operations for one or more data files as sub-data recorded in the area, and Copy the data file as the sub data recorded on the recording medium to the copy destination recording medium. Storage means capable of storing data; and data reading / storing means capable of reading at least the sub-data from the copy source recording medium loaded in the data recording / reproducing portion and storing the data in the storage means. A recording medium loaded after the copy source recording medium is ejected from the data recordable / reproducible portion is set as a copy destination recording medium, and a sub data area of the copy destination recording medium is stored in the storage means. Recording control means capable of recording all or a part of the data file as the sub data. 7. It is assumed that copy management information for managing copy permission / non-permission for each data file as sub data is set as the sub data management information, and the data read / store is performed. Means for reading out at least the sub data and the sub data management information from the copy source recording medium loaded in the data recording / reproducing portion and storing the read data in the storage means; Means for selecting a copyable data file from among the data files as sub-data stored in the storage means based on the copy management information in the sub-data management information stored in the means; Is recorded in the sub-data area of the copy destination recording medium. Data copying apparatus according to Motomeko 6. 8. The data reading / storing method, wherein copy management information for managing copy permission / non-permission for each data file as sub data is set as the sub data management information. Means for reading out at least the sub data and the sub data management information from the copy source recording medium loaded in the data recording / reproducing portion and storing the read data in the storage means; When recording a data file as sub-data stored in the means in the sub-data area of the copy destination recording medium, based on the copy management information in the sub-data management information stored in the storage means, A system for updating and rewriting the copy management information in the sub data management information of the copy destination recording medium. Data copying apparatus according to claim 6, characterized in that it is configured to be able to execute. 9. The data copying apparatus according to claim 6, wherein the main data is audio data, and the data file as the sub data is image data. 10. The data copying apparatus according to claim 6, wherein the main data is audio data, and the data file as the sub data is character data.