JP2002008320A - Recording and reproducing device, magneto-optical disk recording and reproducing device, recording and reproducing method and magneto-optical disk recording and reproducing method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily and adequately delete the unreadable data recorded on a recording medium. SOLUTION: A system controller 9 discriminates whether the number of retry times exceeds a prescribed reference value or not when the generation of an error in an EFM signal is discriminated by the notification received from a digital signal processing circuit 8. When the number of retry times is discriminated to exceed the reference value, the address indicating the sector where the unreadable data is recorded is stored in a defective address memory section 21. The system controller 9 discriminates whether the reinspection of the defective sector is instructed or not when the deletion of the defective sector is instructed by the instruction information inputted from an operation section 10. When the reinspection is instructed, the controller records the signal for inspection in the defective sector, reads the same and discriminates whether the error rises in the EFM signal or not. The system controller 9 forms U-TOC registering the defective sector in FRA or DFA and records (overwrites) the same on a disk for sound recording and reproducing.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording / reproducing apparatus for recording data on a rewritable recording medium such as a magneto-optical disk and reproducing the data recorded on the recording medium. The present invention relates to a recording / reproducing device capable of easily and appropriately deleting data.

[0002]

2. Description of the Related Art As a recording medium for recording information such as music data in a rewritable manner, for example, an MD (Mini Disc ™) is known. In a conventional reproducing apparatus for reproducing data recorded on a recording medium such as an MD, when an error occurs in a reproduced data signal, the recording position (sector) from which the data signal was read is accessed again to read the data signal. Try. If a normal data signal cannot be read out by accessing a predetermined number of times, the reproducing apparatus skips the recording position (sector) and continues reproduction.

[0003]

In the above prior art, every time a recording medium on which unreadable data is recorded is reproduced, a process of trying to reproduce the recorded data in which a reading error has occurred is executed, and the recorded data is read. Until the recording position (sector) is skipped, the same position is accessed many times. For this reason, there is a problem that the processing required for reproducing the recorded data increases, and in the worst case, the reproduction of the recorded data is stopped.

In order to avoid access to the recording position where such unreadable data is recorded, the user operates an operation key or the like to specify the recording position of the unreadable data and instruct the deletion. Must be removed from the playback target, which was troublesome.

The present invention has been made in view of the above circumstances, and provides a recording / reproducing apparatus capable of easily and appropriately deleting unreadable data when the data is recorded on a recording medium. The purpose is to do.

[0006]

To achieve the above object, a recording / reproducing apparatus according to a first aspect of the present invention comprises a rewritable user data recording area for recording user data, and a structure of the user data recording area. For recording and reproducing data on a recording medium including a rewritable management information recording area for recording management information indicating the data recorded on a user data recording area of the recording medium. Detecting that the data is unreadable, creates management information excluding the user data recording area where the data is recorded from the reproduction target, and records the management information in the management information recording area of the recording medium. .

According to the present invention, when the data recorded in the user data recording area of the recording medium is unreadable, the management information excluding the user data recording area in which the data is recorded is excluded from the reproduction target. It is created and recorded in the management information recording area of the recording medium. As a result, the area in which the unreadable recording data is recorded is excluded from the reproduction target, and the unreadable recording data can be simply and appropriately deleted.

A recording / reproducing apparatus according to a second aspect of the present invention comprises a rewritable user data recording area for recording user data, and a rewritable management information recording for recording management information indicating the configuration of the user data recording area. A data extracting unit for recording and reproducing data on a recording medium having an area and reading the recording medium and extracting a data signal, and a data signal extracted by the data extracting unit. Detecting means for detecting that an error has occurred, address storing means for storing an address where a data signal in which the detecting means has detected the error is recorded, and based on the address stored in the address storing means, Whether the user data recording area of the recording medium on which the data signal in which the detection means has detected the error is recorded is to be reproduced. It comprises a management information creating means for creating an exclusion management information, and information recording means for recording the management information generated by said management information generation means to the management information recording area of said recording medium, characterized in that.

According to the present invention, the detecting means detects that an error has occurred in the data signal extracted by reading the recording medium by the data extracting means. At this time, the address storage unit stores the address where the data signal in which the detection unit has detected the error is recorded. Then, the management information creating unit creates management information based on the address stored in the address storage unit, excluding a recording position of the data signal in which the error is detected from being reproduced.
The information recording means records the management information created by the management information creation means in a management information recording area of the recording medium. Thereby, the recording position of the unreadable recording data can be excluded from the reproduction target, and the unreadable recording data can be simply and appropriately deleted.

A magneto-optical disk recording / reproducing apparatus according to a third aspect of the present invention records / reproduces data on / from a rewritable magneto-optical disk, and reads the magneto-optical disk to transmit a data signal. Data extracting means for extracting, signal processing means for decoding the data signal extracted by the data extracting means, and an address for storing an address indicating a recording position of a data signal in which an error has occurred when decoding by the signal processing means Storage means, and a U-TOC in which a sector specified by an address stored in the address storage means is excluded from a reproduction target area.
(User's Table Of Contents) creating management information creating means, and UT created by the management information creating means
Information recording means for recording OC on the magneto-optical disk.

According to the present invention, the address storage means comprises:
An address indicating a recording position of a data signal in which an error has occurred when decoding is performed by the signal processing unit is stored. The management information creating means creates a U-TOC excluding the sector specified by the address stored in the address storage means from the reproduction target area. The information recording means records the U-TOC created by the management information creating means on the magneto-optical disk. As a result, the sector in which the unreadable data is recorded can be excluded from the reproduction target area, and the unreadable data can be easily and appropriately deleted.

Preferably, the address storage means stores a start address and an end address of a sector in which a data signal in which an error has occurred is recorded.

[0013] The management information creating means creates a U-TOC in which a sector specified by an address stored in the address storage means is registered in an unrecorded area or a defective area in accordance with an instruction from a user. Good. Alternatively, the management information creating unit may cause a check signal to be recorded in a sector specified by an address stored in the address storage unit, and may be stored in the address storage unit according to a result of reading the check signal. A U-TOC may be created in which a sector specified by an existing address is registered in an unrecorded area or a defective area.

According to a fourth aspect of the present invention, there is provided a recording / reproducing method, comprising: a rewritable user data recording area for recording user data; and a rewritable management information recording for recording management information indicating a configuration of the user data recording area. A method for recording and reproducing data on a recording medium having an area, and detecting that data recorded in a user data recording area of the recording medium is unreadable,
Management information in which a user data recording area in which the data is recorded is excluded from reproduction targets, and is recorded in a management information recording area of the recording medium.

A magneto-optical disk recording / reproducing method according to a fifth aspect of the present invention is a method for recording / reproducing data on / from a rewritable magneto-optical disk. A data extraction step for extracting, a signal processing step for decoding the data signal extracted in the data extraction step, and an address indicating a recording position of a data signal in which an error has occurred when decoding in the signal processing step is stored in a memory. An address storing step of storing, and a U-TOC (User's Tab) in which a sector specified by the address stored in the memory in the address storing step is excluded from a reproduction target area.
le Of Contents)
An information recording step of recording the U-TOC created in the management information creation step on the magneto-optical disk.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A recording / reproducing apparatus according to an embodiment of the present invention will be described below in detail with reference to the drawings, taking an example in which the recording / reproducing apparatus is applied to a magneto-optical disk recording / reproducing apparatus 100.

FIG. 1 is a block diagram showing a configuration of a magneto-optical disk recording / reproducing apparatus 100 according to an embodiment of the present invention. The magneto-optical disk recording / reproducing apparatus 100 is an apparatus capable of recording / reproducing user data such as music data on a recording / reproducing disk 1, and as shown in FIG.
Spindle motor 2, optical pickup 3, feed motor 4, recording head 5, head driver 6, RF
(Radio Frequency) amplifier 7, digital signal processing circuit 8, system controller 9, operation unit 10,
It comprises a display unit 11 and a buffer memory 12.

The magneto-optical disk recording / reproducing apparatus 100
Recording / playback disk 1 to be recorded / played back in
Is a rewritable disk-shaped recording medium such as a mini-disc (MD; Mini Disc to trademark). The recording / reproducing disk 1 records music data and the like conforming to a predetermined audio format as recording data.

Under control of the digital signal processing circuit 8, the spindle motor 2 rotationally drives the recording / reproducing disk 1 held by a turntable or a clamp mechanism at a predetermined rotational speed.

The optical pickup 3 irradiates a laser beam to the recording / reproducing disk 1 to enable recording / reproducing of recording data such as music data. More specifically, when recording data on the recording / reproducing disk 1, the optical pickup 3 outputs a high-level laser beam for heating the recording track of the recording / reproducing disk 1 to the Curie temperature. Further, when reproducing the recorded data from the recording / reproducing disk 1, the optical pickup 3 outputs a low-level laser beam that enables a data signal to be detected by reflected light subjected to the magnetic Kerr effect. The optical pickup 3 sends the detected data signal to the RF amplifier 7.

The feed motor 4 is for moving the optical pickup 3 in the radial direction of the disk-shaped recording / reproducing disk 1 under the control of the digital signal processing circuit 8.

The recording head 5 is for writing data by generating a magnetic field corresponding to a drive signal received from the head driver 6 and applying the magnetic field to the recording / reproducing disk 1. At the position facing the optical pickup 3.

The head driver 6 receives data encoded by the digital signal processing circuit 8,
This is for generating a drive signal for driving the recording head 5. The head driver 6 supplies the generated drive signal to the recording head 5.

The RF amplifier 7 performs an arithmetic process or the like based on the signal detected by the optical pickup 3, thereby
Group information such as a reproduction RF signal, a tracking error (TE) signal, a focus error (FE) signal which is a data signal, and absolute position (ADIP; ADdress In Pregroove) information recorded as a pre-groove on the recording / reproducing disc 1. Is extracted. The RF amplifier 7 sends the extracted various signals and information to the digital signal processing circuit 8.

The digital signal processing circuit 8 executes signal processing such as encoding / decoding of user data to be recorded / reproduced on the recording / reproducing disk 1 and decoding of address information. More specifically, the digital signal processing circuit 8 outputs the absolute position information (ADIP) received from the RF amplifier 7.
ADIP decoder for decoding address information such as information. The digital signal processing circuit 8
Is an ATRAC (Adap) included in a reproduced RF signal that has been subjected to EFM (Eight-to-Fourteen Modulation) modulation.
tive TRansfer Acoustic Coding) is provided with an EFM decoder for decoding data, addresses, sub data, and the like. Further, the digital signal processing circuit 8 includes a memory controller that controls writing / reading of data to / from the buffer memory 12 to realize, for example, a shock proof function.

Further, the digital signal processing circuit 8
An ATRAC encoder that encodes music data and the like input from a C (Analog-to-Digital Converter) or the like to generate ATRAC data, or expands ATRAC data decoded by an EFM decoder to create a DAC (Digi
TAL-to-Analog Converter) and the like.

The system controller 9 is composed of a microprocessor or the like, and controls the operation of the digital signal processing circuit 8 to record / reproduce data on the recording / reproducing disk 1. For example, when the recording / reproducing disk 1 is mounted on a turntable or the like and mounted so as to be rotatable by the spindle motor 2, the system controller 9 controls the digital signal processing circuit 8.
, And obtains the U-TOC read from the management information area of the recording / reproduction disk 1. When an instruction to start reproduction of user data is input from the operation unit 10, the system controller 9 controls the digital signal processing circuit 8 based on the management information read from the recording / reproduction disk 1. And reproduce the user data. At this time, the system controller 9 sends the address information (ADIP address information) decoded by the ADIP decoder included in the digital signal processing circuit 8,
The address information (EFM address information) decoded by the FM decoder is acquired, and information such as a reproduction time and a track number is displayed on the display unit 11.

The operation unit 10 is composed of a push switch, a keypad, and the like, and is used for inputting instruction information for instructing start / stop of recording / reproduction of user data to the system controller 9 by a user operation. .

The display unit 11 is an LCD (Liquid Crystal D)
This is configured to display information such as a reproduction time and a track number under the control of the system controller 9.

The buffer memory 12 is composed of a semiconductor memory or the like, and temporarily stores ATRAC data decoded (or encoded) by the digital signal processing circuit 8. The buffer memory 1
2, an error detection flag 20 indicating whether the digital signal processing circuit 8 has detected an unreadable data signal, a defective address storage unit 21 for storing an address of a sector in which unreadable user data is recorded, and It has.

The error detection flag 20 updates the storage content according to an instruction received from the system controller 9 via the memory controller provided in the digital signal processing circuit 8. That is, for example, when the digital signal processing circuit 8 detects unreadable user data, the buffer memory 12 sets the error detection flag 20 according to the instruction sent from the system controller 9.

The defective address storage unit 21 stores a start address (ADIP address) of a sector in which unreadable user data is recorded according to an instruction received from the system controller 9 via a memory controller provided in the digital signal processing circuit 8. The end address (ADIP address) is stored.

Next, the configuration of the recording / reproducing disk 1 on which user data such as music data is recorded / reproduced by the magneto-optical disk recording / reproducing apparatus 100 having the above configuration will be further described. The recording / reproducing disk 1 is a recording medium on which user data can be recorded / reproduced with, for example, 36 sectors as one recording / reproducing operation unit (cluster), and a user data recording area (user area) for recording user data such as music data. ) And a management information area for recording management information for managing the configuration of the user data recording area.

In the management information area, for example, U-TOC (User's Table Of Control)
ents) are recorded. FIG. 2 shows the U-TO of sector 0.
FIG. 3 is a diagram illustrating a configuration of C. As shown in the figure, the U-TOC of sector 0 is composed of 588 × 4 bytes of data and includes information for managing user data such as music data recorded in the user area. Note that FIG.
The numerical value indicated by adding “h” is a so-called hexadecimal numerical value.

A P-DFA shown in FIG. 2 is a table pointer for managing a defective area (DFA; DeFective Area) on the recording / reproducing disk 1, and is a part table of a part table indicating a sector which becomes a defective area due to a scratch or the like. Specify the first byte position.

P-EMPTY shown in FIG. 2 is a table pointer for designating the head byte position of an unused part table.

The P-FRA shown in FIG. 2 is an unrecorded area (FR) on which data can be recorded on the recording / reproduction disk 1.
A: A table pointer for managing a free recordable area (A: Free Recordable Area), which designates a head byte position of a part table in which a sector to be an unrecorded area is indicated.

The P-TNOn (n; 0 to 25) shown in FIG.
5) is a table pointer for managing a recording position of music data and the like recorded on the recording / reproducing disk 1. For example, P-TNO1 is music data corresponding to the music of the first music (track number is "1"). Specifies the first byte position of the part table indicating the sector in which is recorded.

Link-P shown in FIG. 2 is a link pointer indicating a connection relationship of music data and the like recorded in a plurality of physically discontinuous segments in the user area. For example, the byte position of another part table is specified in accordance with the temporal reproduction order (recording order) by the Link-P of the part table specified by P-TNO1, and thereafter, the Link-P of the link destination part table is specified.
Each part table is linked until P becomes “00h”. By reading and reproducing data from the recording positions (sectors) indicated in the respective part tables according to the order of concatenation in this way, music data and the like recorded in the physically separated user areas are continuously recorded as one music. And can be played.

The operation of the magneto-optical disk recording / reproducing apparatus 100 according to the embodiment of the present invention will be described below. In the magneto-optical disk recording / reproducing apparatus 100, when an error occurs in a data signal reproduced from the recording / reproducing disk 1 and the data signal cannot be read, the area from which the recorded data is read is deleted by excluding the area from which data is reproduced. It is a device that can do.

In the magneto-optical disk recording / reproducing apparatus 100, when the recording / reproducing disk 1 is mounted on a turntable or the like so as to be rotatable by the spindle motor 2,
U recorded in the management information area of the recording / playback disc 1
-To read out the TOC and specify the configuration of the recording data in the user area.

Thereafter, when an instruction to start reproduction is input from the operation unit 10, the system controller 9
The operation of the digital signal processing circuit 8 is controlled according to the configuration of the recording data specified from the U-TOC, and the reproduction of the recording / reproduction disk 1 is started.

The digital signal processing circuit 8 drives the spindle motor 2 to rotate the recording / reproducing disk 1,
The optical pickup 3 is moved by the feed motor 4 to the read position of the recording data. The optical pickup 3 irradiates the recording / reproducing disk 1 with laser light to detect return light,
The signal is converted into an electric signal and sent to the RF amplifier 7.

The RF amplifier 7 executes arithmetic processing and the like based on the signal received from the optical pickup 3, and extracts a reproduced RF signal, a tracking error signal, a focus error signal, and the like, which are data signals. The RF amplifier 7 sends the extracted various signals to the digital signal processing circuit 8.

The digital signal processing circuit 8 executes predetermined processing such as decoding a signal received from the RF amplifier 7, and outputs reproduced music data and the like to a DAC or the like as appropriate. At this time, the digital signal processing circuit 8 decodes ATRAC data from the reproduced RF signal subjected to the EFM modulation received from the RF amplifier 7. The digital signal processing circuit 8 expands the decoded ATRAC data while accumulating it in the buffer memory 12 and reproduces the music data. This makes it possible to absorb the difference between the expansion speed of ATRAC data and the transfer speed of music data and the like, and to realize a shock proof function for preventing sound skipping.

While the data recorded on the recording / reproducing disk 1 is being reproduced in this way, the system controller 9 obtains ADIP address information, EFM address information, and the like from the signal reproduced by the digital signal processing circuit 8, The display unit 11 displays a reproduction time, a track number, and the like.

Here, when reproducing the recording data of the recording / reproducing disk 1, the magneto-optical disk recording / reproducing apparatus 100 executes the processing shown in the flowcharts of FIGS. Can be removed from the reproduction target.

That is, when an instruction to start reproduction is input from the operation unit 10, the magneto-optical disk recording / reproducing apparatus 100 starts the sector data reading process shown in the flowchart of FIG.

When the sector data reading process is started, the system controller 9 executes an initialization process such as clearing the error detection flag 20 (step S1).

The system controller 9 instructs the digital signal processing circuit 8 to read user data. The digital signal processing circuit 8 reads out user data recorded in a sector belonging to the user area of the recording / reproducing disc 1 in response to an instruction from the system controller 9 (step S2).

At this time, the system controller 9 determines whether an error has occurred in the EFM signal received by the digital signal processing circuit 8 (step S3).

More specifically, the digital signal processing circuit 8 outputs a reproduced RF signal (EF
M signal) from the RF amplifier 7, ATRAC data,
Decode addresses, subcodes, etc. At this time, if the reproduced RF signal received from the RF amplifier 7 does not include synchronous data (sync), the digital signal processing circuit 8
It detects that the recording data has become unreadable due to an error in the EFM signal, and notifies the system controller 9 that a reading error has occurred.

When the system controller 9 determines from the notification received from the digital signal processing circuit 8 that an error has occurred in the EFM signal (YE in step S3).
S), it is determined whether or not the number of retries has exceeded a predetermined reference value (step S4). Here, the system controller 9 holds a preset reference value, and counts the number of times that the reading process of the data recorded in the same sector is repeatedly executed as the number of retries. By comparing the number of retries with the reference value, the system controller 9 determines whether the number of retries has exceeded the reference value.

When the system controller 9 determines that the number of retries is equal to or smaller than the reference value (N in step S4)
O), the process returns to step S2, and the reading of the user data is repeated.

On the other hand, if the system controller 9 determines that the number of retries exceeds the reference value (YES in step S4), it determines whether the error detection flag 20 provided in the buffer memory 12 is set (step S5). ).

When the system controller 9 determines that the error detection flag 20 is not set (NO in step S5), it gives an instruction to the memory controller included in the digital signal processing circuit 8 to store the defective address stored in the buffer memory 12. The unit 21 stores an address indicating a sector in which unreadable data is recorded.

At this time, the system controller 9 updates the start address of the sector stored in the defective address storage unit 21 (step S6), and stores the ADIP address of the defective sector in which unreadable data is recorded. The ADIP address can be specified by the system controller 9 reading the ADIP address information received from the digital signal processing circuit 8. Further, the system controller 9 sets the error detection flag 20 (Step S7).

On the other hand, if the system controller 9 determines that the error detection flag 20 is set (YES in step S5), it skips the processing in steps S6 and S7 and stores the defective address in the defective address storage unit 21. The end address of the sector to be updated (step S
8). At this time, the system controller 9 causes the defective address storage unit 21 to store the ADIP address specified by reading the ADIP address information received from the digital signal processing circuit 8 as the end address. As a result, the EFM read from consecutive sectors
When an error occurs in a signal, the signal can be collectively stored as a bad sector.

After that, the system controller 9 controls the digital signal processing circuit 8 to advance the address of the sector from which the user data is to be read (step S9), and returns the processing to step S2 to store the sector in the user area. The reading of the recorded user data is continued.

If the system controller 9 determines in step S3 that no error has occurred in the EFM signal (NO in step S3), it determines whether or not the error detection flag 20 is set (step S3). Step S10).

If it is determined that the error detection flag 20 is not set (NO in step S10), the system controller 9 advances the process to step S9, and reads the user data recorded in the next sector.

On the other hand, if it is determined that the error detection flag 20 is set (YES in step S10), the system controller 9 executes a bad sector deletion process shown in the flowchart of FIG. 4 (step S11).

When the bad sector deletion process is started, the system controller 9 causes the display section 11 to display an image indicating that a bad sector has been detected, and notifies the user that there is unreadable data (step S20). .

At this time, the system controller 9 determines whether or not an instruction to delete a defective sector has been issued based on the instruction information input from the operation unit 10 (step S21).

When the system controller 9 determines that the deletion of the defective sector has not been instructed (step S21)
NO), and ends the bad sector deletion process.

On the other hand, when the system controller 9 determines that the deletion of the defective sector has been instructed (step S21)
YES), it is determined whether or not an instruction to inspect a defective sector has been issued based on the instruction information input from the operation unit 10 (step S22).

When the system controller 9 determines that the inspection of the defective sector has not been instructed (step S22)
NO), the defective sector is excluded (deleted) from the reproduction target area (step S23). At this time, the system controller 9 sets the sector specified by the address stored in the defective address storage unit 21 to FRA (unrecorded area) or DFA (defective area) based on the preset information or the instruction information input from the operation unit 10. ).

Here, the system controller 9 corresponds to FIG.
By rewriting P-FRA and Link-P shown in
By creating a U-TOC in which the connection relationship of the part tables indicating the (unrecorded area) is changed, the sector in which the unreadable data is recorded is registered in the FRA (unrecorded area).

Alternatively, the system controller 9 rewrites the P-DFA and the Link-P shown in FIG.
A sector in which unreadable data is recorded is registered in a DFA (defective area) by creating a U-TOC in which the connection relationship of the part tables indicating A (defective area) is changed.

At this time, the system controller 9 combines the areas before and after the defective sector by changing, for example, Link-P shown in FIG. 2 (step S2).
4). In this way, the system controller 9 creates the U-TOC in which the connection relationship after excluding the defective sector from the reproduction target is adjusted. System controller 9
Sends the created U-TOC to the digital signal processing circuit 8 and records it in the management information area of the recording / playback disk 1.

The digital signal processing circuit 8 controls the head driver 6 to record the U-TOC created by the system controller 9 in this manner, and
And drives the optical pickup 3 to irradiate the recording / reproducing disk 1 with a high-level laser beam.
As a result, the U-TOC created by the system controller 9 is recorded (overwritten) in the management information area of the recording / playback disk 1. By excluding the defective sector specified by the address stored in the defective address storage unit 21 from the reproduction target area in this way, the next time the recording / reproduction disk 1 is reproduced, unreadable data will be lost. No access to the recorded bad area.

When the system controller 9 determines in step S22 that the inspection of the defective sector has been instructed (YES in step S22), the system controller 9 controls the digital signal processing circuit 8 to store the data in the defective address storage unit 21. The inspection signal is recorded in the sector specified by the specified address (step S25).

Thereafter, the system controller 9 controls the digital signal processing circuit 8 to read the defective sector on which the inspection signal is recorded (step S26).
It is determined whether an error has occurred in the FM signal (step S27).

When the system controller 9 determines that an error has occurred in the EFM signal (Y in step S27)
ES), the defective sector whose address is stored in the defective address storage unit 21 is registered in a DFA (defective area) (step S28).

On the other hand, the system controller 9
If it is determined that no error has occurred in the signal (NO in step S27), the defective sector whose address is stored in defective address storage unit 21 is registered in FRA (unrecorded area) (step S29). As a result, a defective sector determined to be reusable from the result of inspection of the defective sector can be registered in the unrecorded area and used again to record user data.

After that, the system controller 9 advances the processing to the above-mentioned step S24, combines the areas before and after the defective sector to create a U-TOC in which the connection relation is adjusted, and sends it to the digital signal processing circuit 8 for recording. The information is recorded on the reproduction disk 1. Thus, according to the result of the inspection of the defective sector using the inspection signal,
A U-TOC registered in FA (defective area) or FRA (unrecorded area) can be created and recorded (overwritten) on the recording / playback disk 1.

As described above, according to the present invention,
The address of the sector where the unreadable user data is recorded is stored in the defective address storage unit 21, and a U-TOC in which the defective sector is excluded from the reproduction target area is created based on the storage contents of the defective address storage unit 21. Can be recorded in the management information area. As a result, unreadable recording data can be detected and easily and appropriately deleted.

According to the present invention, for example, when the magneto-optical disc recording / reproducing apparatus 100 has a function of restoring the recording / reproducing disc 1 in which the U-TOC has been destroyed, the original music data can be easily restored. That is, the magneto-optical disk recording / reproducing device 100 having such a function is
A U-TOC is created in which the entire user area of the recording / playback disc 1 in which the U-TOC is destroyed is an area in which music data of one music is recorded, and the recorded data can be reproduced. At this time, the magneto-optical disc recording / reproducing apparatus 100 automatically excludes a portion where an error has occurred in the reproduced EFM signal from a reproduction target, so that only a sector in which music data has been recorded is simply set as a reproducible area. And it can be properly restored.

In the above embodiment, the buffer memory 12 stores the error detection flag 20 and the defective address storage unit 2
However, the present invention is not limited to this. That is, as shown in FIG. 5, for example, a RAM in which writing / reading is performed under the control of the system controller 9.
(Random Access Memory) 30 and the RAM 3
0 may include the error detection flag 20 and the defective address storage unit 21.

Further, the present invention is not limited to a magneto-optical disk recording / reproducing apparatus for recording / reproducing data on / from a magneto-optical disk such as an MD.
The present invention can be applied to an arbitrary recording / reproducing apparatus which records / reproduces data on / from a recording medium having a rewritable user area for recording data and a rewritable management information area for recording management information indicating the configuration of the user area. it can.

[0081]

As described above, according to the present invention, the address for specifying the recording position of the unreadable recording data is stored, and the management information excluding the unreadable recording data from the reproduction target is stored. It can be created and recorded on a recording medium. Thus, unreadable data recorded on the recording medium can be easily and appropriately deleted.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of a magneto-optical disk recording / reproducing apparatus according to an embodiment of the present invention.

FIG. 2 is a diagram illustrating a configuration of a U-TOC of a sector 0;

FIG. 3 is a flowchart illustrating a sector data reading process.

FIG. 4 is a flowchart illustrating a bad sector deletion process.

FIG. 5 is a diagram showing a modification of the magneto-optical disk recording / reproducing apparatus according to the embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Recording / playback disk 2 Spindle motor 3 Optical pickup 4 Feed motor 5 Recording head 6 Head driver 7 RF amplifier 8 Digital signal processing circuit 9 System controller 10 Operation unit 11 Display unit 12 Buffer memory 20 Error detection flag 21 Defective address storage unit 30 RAM 100 magneto-optical disk recording / reproducing device

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) G11B 20/18 572 G11B 20/18 572C 572F

Claims (8)

[Claims] 1. Recording data on a recording medium having a rewritable user data recording area for recording user data and a rewritable management information recording area for recording management information indicating the configuration of the user data recording area. A recording / reproducing apparatus for reproducing, when detecting that data recorded in a user data recording area of the recording medium is unreadable, reproducing the user data recording area in which the data is recorded. A recording / reproducing apparatus, wherein management information excluded from the target is created and recorded in a management information recording area of the recording medium. 2. Data is recorded on a recording medium having a rewritable user data recording area for recording user data and a rewritable management information recording area for recording management information indicating the configuration of the user data recording area. A recording / reproducing apparatus for reproducing the data, wherein the data extracting means reads the recording medium to extract a data signal; and the detecting means detects that an error has occurred in the data signal extracted by the data extracting means. Address storage means for storing an address at which a data signal at which the detection means has detected an error is stored; and a data signal at which the detection means has detected an error based on the address stored in the address storage means. For creating management information excluding a user data recording area of the recording medium on which is recorded from being reproduced. A recording / reproducing apparatus comprising: an information creating unit; and an information recording unit that records management information created by the management information creating unit in a management information recording area of the recording medium. 3. A magneto-optical disc recording / reproducing apparatus for recording / reproducing data on / from a rewritable magneto-optical disc, comprising: data extracting means for reading the magneto-optical disc to extract a data signal; Signal processing means for decoding the data signal extracted by the means; address storage means for storing an address indicating a recording position of a data signal in which an error has occurred when decoding by the signal processing means; storage in the address storage means UT excluding the sector specified by the specified address from the reproduction target area
A magneto-optical device comprising: management information creating means for creating an OC (User's Table Of Contents); and information recording means for recording the U-TOC created by the management information creating means on the magneto-optical disk. Disk recording and playback device. 4. The magneto-optical disk recording / reproducing apparatus according to claim 3, wherein said address storage means stores a start address and an end address of a sector where a data signal in which an error has occurred is recorded. . 5. The management information creating means creates a U-TOC in which a sector specified by an address stored in the address storage means is registered in an unrecorded area or a defective area according to an instruction from a user. The magneto-optical disk recording / reproducing apparatus according to claim 3 or 4, wherein: 6. The management information creating means records an inspection signal in a sector specified by an address stored in the address storage means, and stores the inspection signal in the address storage means according to a result of reading the inspection signal. 5. The magneto-optical disk recording / reproducing apparatus according to claim 3, wherein a U-TOC in which a sector specified by the stored address is registered in an unrecorded area or a defective area is created. 7. Data is recorded on a recording medium having a rewritable user data recording area for recording user data and a rewritable management information recording area for recording management information indicating the configuration of the user data recording area. A recording / reproducing method for reproducing, wherein it detects that data recorded in a user data recording area of the recording medium is unreadable, and reproduces the user data recording area in which the data is recorded. A recording / reproducing method comprising: creating management information excluded from a target; and recording the management information in a management information recording area of the recording medium. 8. A magneto-optical disk recording / reproducing method for recording / reproducing data on / from a rewritable magneto-optical disk, comprising: a data extracting step of reading the magneto-optical disk to extract a data signal; A signal processing step of decoding the data signal extracted in the step; an address storage step of storing in a memory an address indicating a recording position of a data signal in which an error has occurred during decoding in the signal processing step; A management information creating step of creating a U-TOC (User's Table Of Contents) excluding the sector specified by the address stored in the memory from the reproduction target area in the step; and a U-TOC created in the management information creating step. Recording an TOC on the magneto-optical disk. Magneto-optical disc recording and reproducing method characterized by and.