JP2001351334A - Optical recording medium and data recorder-reproducer performing data recording-reproducing with respect to the recording medium - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an optical recording medium which can compensate for a defect that is caused by a conventional defect management or the alternation processing. SOLUTION: This optical recording medium can record and reproduce data by means of a laser beam and has a defect management prevent flag that is previously recorded in the prescribed area of a read-in area to show whether a defect management or the alternation processing is needed or not.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical recording medium on which information is recorded / reproduced by using a laser beam, an information recording / reproducing apparatus using the optical recording medium, and an information recording / reproducing apparatus. And a host device connected to the host device.

[0002]

2. Description of the Related Art Conventionally, there is a concept of defect management as one method for ensuring the reliability of data recorded on an optical recording medium.

In this defect management, a list in which a defective portion of a recording medium is associated with an area to be used in place of the defective portion is recorded in a predetermined area of the recording medium.
At the time of reproduction, control is performed so as to avoid using a defective portion by referring to the list. Such recording / reproducing processing using another area in place of the defective portion is generally referred to as replacement processing.

[0004] The replacement process includes a slipping process and a linear replacement process according to a replacement algorithm. Each of the processes is a PDL (Primary Defec).
tList) or SDL (Secondary D)
A list called effect list (DMA) is a DMA (Defect Management) of an optical recording medium.
Area). Such replacement processing is executed by pre-reading a certain amount of data from an optical recording medium, holding the data in a memory, and processing this.

[0005] Such a concept of defect management is an excellent method in terms of securing the reliability of data.
The disc was adopted from the time of its appearance, and its basic algorithm was DVD-RAM (2.6 GB,
4.7 GB) and DVD + RW (3.0 GB), and PDL is no longer used in DVD + RW 4.7 GB, but SDL remains as it is.

[0006]

By the way, in recent years, as the capacity of optical recording media has increased, A
V files occupy a large part of the recorded content. In recording and reproducing the AV file, real-time processing is very important.

However, the replacement process involves a lot of seek, write, and verify operations, so that the buffer memory overflows and the recording or reproduction in real time is interrupted.

[0008] That is, in the AV file, partial data loss is such a degree that it is hidden by interpolation or leads to temporary disturbance of the screen, and depending on the degree, it is generally acceptable. On the other hand, a delay or interruption of the processing due to the replacement processing is fatal in reproducing or recording the AV file.

On the other hand, a host IF command (Set Streaming Command) for keeping the recording / reproducing rate above a certain level
By using such a method, it is possible to effectively prevent the replacement process. However, if the command process is omitted, the replacement process is performed, and the above-described problem occurs.

The present invention has been made in view of such circumstances, and an optical recording medium capable of compensating for a defect caused by conventional defect management or replacement processing, and recording / reproducing using this optical recording medium. It is intended to provide a device or the like.

A more specific object of the present invention is to provide an optical recording medium capable of selectively suppressing replacement processing according to the type of data, and a recording / reproducing apparatus using the optical recording medium.

[0012]

According to a first main aspect of the present invention, there is provided an optical recording medium capable of recording and reproducing data using a laser beam. An optical recording medium is provided in which replacement processing necessity / unnecessary information indicating whether or not replacement processing is necessary is recorded in a predetermined area of the optical recording medium in advance.

According to such a configuration, at the time of recording / reproducing the data on / from the optical recording medium, the replacement process can be completely eliminated based on the replacement process necessary / unnecessary information. As a result, it is possible to reduce interruption of recording and reproduction when recording / reproducing audiovisual (AV) data in which real-time property is important.

According to one embodiment of the present invention, it is preferable that the replacement processing necessity / unnecessary information is recorded in a lead-in area of the optical recording medium. Preferably, the optical recording medium is a recordable and reproducible recording recording medium compatible with a DVD-ROM.
According to such a configuration, data can be read out by the DVD-ROM drive by preventing replacement processing during data recording / reproduction.

Further, according to another embodiment of the present invention, it is preferable that a defective block registration section in which a defective block of the optical recording medium is registered is provided in a predetermined area of the optical recording medium. . According to such a configuration,
For example, when processing a data file that is not audiovisual data, it becomes possible to perform a replacement process on the host side.

According to a second main aspect of the present invention, a recording / reproducing unit for recording / reproducing data on / from an optical recording medium, and a replacement process in a predetermined area of the optical recording medium Is recorded, the recording / reproducing unit continuously performs recording / reproducing without returning a recording / reproducing error for a defective block at the time of recording / reproducing to the host. A recording / reproducing apparatus for an optical recording medium, comprising:

According to such a configuration, for example, at the time of recording / reproducing audiovisual (AV) data in which real-time property is important, the replacement process can be completely eliminated. As a result, interruption of recording or reproduction due to buffer overflow or the like during recording / reproduction of AV data can be reduced.

According to one embodiment of the present invention, the control unit determines whether data to be recorded / reproduced on / from the optical recording medium is audiovisual data, If the data is not audiovisual data, it is preferable to have an error control unit that returns a recording / reproducing error in the defective block to the host. According to such a configuration, if the data is not audiovisual data, the host device can perform the replacement process based on the error (defective block information) returned to the host.

In the case where the data to be recorded / reproduced is not audiovisual data, it is further desirable to have a defective block inspection section for performing a defective block inspection by writing and reading data when recording data. According to such a configuration, it is possible to obtain sufficient information for performing the replacement process on the host side even when the inspection is not performed.

According to one embodiment of the present invention, the apparatus further comprises:
It is preferable to have a replacement processing required / unnecessary information recording unit for recording / erasing data indicating that the replacement processing is not required. According to such a configuration, for example, according to an instruction from the host device, the replacement process is not performed at the time of recording / reproduction of audiovisual (AV) data or the like in which real-time property is important, and the replacement process is performed for other data. Processing can be performed.

In this case, the optical recording medium is a DVD
-In the case of a recordable and reproducible recording medium compatible with a ROM, an optical recording medium reproducible by a DVD-ROM drive can be obtained.

According to a third main aspect of the present invention, there is provided a host apparatus connected to the recording / reproducing apparatus according to the second aspect, wherein the host apparatus transmits a recording / reproducing signal from the recording / reproducing apparatus. There is provided a host device having a replacement processing function unit that performs a replacement process by allocating another block instead of the defective block by a file system when a reproduction error is returned.

Even when the recording / reproducing device does not perform the replacement process, for example, at the time of recording / reproducing data other than the audiovisual data, the replacement process can be performed by the file system of the host device. .

The replacement process in the host device includes, for example,
The defective block reported as an error may be used, and the next or nearby unused area may be allocated and used. Also, while recording one data file,
If an error is reported, it is possible to discard the file from the beginning of the file up to the defective block, and to assign the file after the defect to the file.

The above described features and other features and remarkable effects of the present invention will be clearly understood by those skilled in the art from the following embodiments of the present invention and the accompanying drawings.

[0026]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a preferred embodiment of the present invention will be described with reference to the drawings.

This embodiment will be described by taking as an example a case where the present invention is applied to a DVD + RW4.7 GB which is a recordable optical recording medium. This DVD + RW4.7G
The most characteristic feature of B is that it has the same size and physical format as a standardized and widely used DVD-ROM and has compatibility.

(Optical Recording Medium) FIG. 1 shows a schematic format of DVD + RW 4.7 GB (hereinafter referred to as "optical disk 1") as the optical recording medium. The format of the optical disc 1 includes a data area 2 for recording an AV file such as video and music and a data file such as document data, a lead-in area 3 provided on the inner circumference side with respect to the data area, and And a lead-out area 4 provided.

FIG. 2 is a schematic diagram showing the structure of this format. The lead-in area 3 includes a replace zone (Replace Zone 1), a disc management zone (DMA 1, DMA 2), and an inner disc identification zone (Inner Disc Identification Zone).
ne) is sectioned. The disk management zone stores an RPL (replacement list) corresponding to a conventional SDL. The RPL is, for example, a list (defective block information) for associating the defective area (defective block) shown in FIG. 5 with the replacement area 7 provided in the replacement zone. That is,
At the time of recording / reproducing of this optical disc, the replacement processing (Linear Replacement) can be performed between the defective area 5 and the replacement area 6 by referring to the RPL.

In the inner disk identification zone, an FDCB (formatting disk control block) in which information relating to the format of the disk is integrated is secured.

FIG. 3 shows an example of the FDCB format of the optical disc according to this embodiment.

Of the FDBC format examples, only those related to the gist of the present invention will be described.
An area for recording Formatting Status and Mode information is secured at address 47, and Last Written A is stored at addresses D48 to D51.
ddress information, Last Verified Addr at addresses D52-D55
ess information is stored.

FIG. 4 shows an example of the format of the Formatting Status and Mode information. In this embodiment, the reserved status and the physical formatting, or the subsequent inspection, are reserved during the manufacturing (Certify) and physical formatting. Defect management prevention flag (DefectManagement flag) for prohibiting replacement processing in a part of the area (Reserved)
agement Prevent) is recorded. In this embodiment, the defect management flag indicates that the defect management is active when "0" is set and that the linear address space is secured, and that the defect management is not active when it is "1". means.

The Last Written Address information indicates the last address of an area in the data area to which data has been continuously written from the inner periphery at the time of inspection (certify) after manufacturing. Further, Last Verified Address information indicates the last address in the data area, which is continuously inspected from the inner periphery during the inspection after manufacturing.

In order to understand this embodiment, the defect management flag, the Last Written Address
And only the description of Last Verified Address is enough,
The description of the other parts is omitted.

(Control at Formatting) Next, with reference to a flowchart shown in FIG. 5, a processing procedure at the time of formatting (physical format) of the optical disk configured as described above will be described.

In general, this type of optical disk is used for performing write / read inspection (Certify) on the disk immediately after manufacture and performing a prescribed physical format to perform defect management in order to thoroughly control quality.
RPL is generated and recorded.

On the other hand, in the case of the optical disk of the present invention, such a test is not always necessary because the recording / reproducing apparatus does not perform any replacement processing. However, for data files other than audiovisual data, it becomes necessary to compensate for defective blocks in some way. For this reason, in the present embodiment, as will be described later, the host device performs the replacement process using the file system. Therefore, the format processing procedure of this embodiment is configured so that the above-mentioned inspection (Certify) can be performed as necessary.

That is, when the formatting process for this optical disc is started, first, in step S1, the inspection (C
ertify). When the inspection is performed, in step S2, data writing (Write) is performed on the entire surface of the disk, and then the data is called to execute comparison verification (Verify) between the write data and the called data (step S2). Then, a replacement list (RPL) for replacement processing is generated based on the defect information obtained at this time, and this is written to a defect management area (DMA).

Then, based on the inspection performed in this manner, in step S3, the Last Written
Set the Address and Last Verified Address parameters to "lead-out -1", respectively.

On the other hand, if it is determined that the inspection is not to be performed, a replacement list (RPL) having no replacement entry is generated in step S4 and written in the defect management area. And based on this, Wr
Itten Address and Last Verified Address are held as initial values (step S5). Even in this case, as will be described later, in the case of a data file, it is desirable to interpret a write command as a write and verify command, and to update this RPL during a write process.

Next, in step S6, it is determined whether or not defect management (replacement processing) is to be prevented. If so, the parameter of the defect management prevent flag of the FDBC is set to 1; (Step S7). And finally this FD
The formatting process ends by writing the BC in the inner disk identification area of the lead-in area (step S9).

(Writing process to disk)
A recording / reproducing apparatus for recording and reproducing data on and from the optical disc 1 and a write / read operation using the same will be described.

As shown in FIG. 6, the recording /
The reproducing apparatus has a recording / reproducing unit 10 for writing and reading data to and from the optical disc 1, and a control unit 11 for controlling the recording / reproducing unit 10. The recording / reproducing unit 11 includes a spindle motor 12 for rotating and driving the optical disk 10, an optical pickup 13 for irradiating the back surface of the optical disk 10 with a laser beam to write and read data, and a spindle motor 12. A driver 15 is connected to the optical pickup 13 for controlling the number of rotations of the optical disk 10 and a position for writing / reading information, and a servo circuit 16 for supplying a drive signal to the driver 15.

The control unit 11 includes a CPU 18, a ROM 1
An analog signal processing circuit 23 connected to the optical pickup 13 and the servo circuit 16, a digital signal circuit 24, and recording / reading of data to / from a buffer memory 25 are controlled on a bus 21 to which the RAM 9 and the RAM 20 are connected. A buffer control circuit 26 and a host interface circuit 29 for exchanging commands and data with the host device 28 are connected. The buffer memory 25 is a relatively large-capacity storage medium, and is used for performing a replacement process and an error correction process.

A program for executing the processing procedure described below is stored in, for example, the ROM 19, and is appropriately called by the CPU 18 to the RAM 20 and executed. Concerning the components of this program, only those related to the gist of the present invention will be described. In addition to a main program (not shown), a data writing / reading unit 31 for performing data writing / reading control according to an instruction from a host, and a replacement list ( RP
L), a replacement process execution unit 32 for performing the replacement process, a replacement process suppression unit 33 that suppresses the replacement process by the replacement process execution unit 32 based on the defect management prevention flag, and the defect management prevention flag. Management flag changing unit 34 for changing ON (1) / OFF (0) of the data, a data type judging unit 35 for judging the type of data in a streaming mode or the like, and a defect type block for a predetermined data type. An error control unit 36 that returns an error to the host device 28 in response to the access.

Hereinafter, the functions realized by these components will be described based on the processing procedure shown in the flowchart of FIG. When the defect management prevention flag is off (0), the replacement process execution unit 32 performs a replacement process similar to the conventional one based on the replacement list (RPL). Therefore, here, only the processing procedure when the defect management prevent flag is ON (1) will be described.

This processing procedure is started upon receiving a data write command from the host device 28,
First, the data type determining unit 35 determines whether the data write mode is a streaming mode (Step S10). When the defect management event flag is on (1) and the mode is the streaming mode, that is, when the data to be written on the optical disc 10 is an audiovisual (AV) file, the replacement processing suppressing unit 33 causes an error in accessing the defective portion. Is written and the writing is executed (step S11). As a result, the replacement process execution unit 32
Is completely prevented, the buffer memory 25 does not overflow and writing is not interrupted.

On the other hand, when not in the streaming mode,
That is, if it is determined that the data file is a data file (for example, a document file) other than the AV file, data reliability is required. Write control is performed based on this.

For this purpose, the write / read command section first detects whether or not an entry (registration of a defective block) matching the RPL exists in the area to be written (step S12). If no matching entry exists, data writing is performed (step S13). If there is a matching entry, writing is performed up to the position before the defective block (step S14).

Then, the error control section performs step S
If there is no error in the writing process in step 13, the process is terminated normally. If there is an error, error information is returned to the host device 28 together with the defective address, and the process for the write command is terminated (step S13). S15, S1
6). That is, in this embodiment, the write / read command unit converts the write command into a verify (Write & Verify) command.
And executes the above-described processing while verifying the write data. When a defective block is found, writing is terminated at that point and an error is returned to the host (step S16).

On the other hand, the error control unit determines in step S1
If there is no error in the writing process in step 4, an error is returned to the host device together with the defective address registered in the RPL, and the process ends (steps S17 and S1).
8). However, also in this case, the write / read command unit interprets the write command as a command for verification (Write & Verify), executes the above-described processing while verifying the write data, and finds a defective block. If so, the writing is terminated at that point and an error is returned to the host (step S18).

That is, in the device according to this embodiment,
When the defect management prevent flag is ON, no replacement processing is performed. However, in the case of a data file requiring reliability, an appropriate error is returned to the host
(Step S19).

The defect management flag changing section 34 has a function of arbitrarily changing the defect management event flag in the FDBC based on a command from the host device 28.

(Replacement Processing by Host Device File System) Next, an outline of the replacement processing by the host device 28 will be described.

The replacement process by the host device is configured to be executed by the replacement process control unit 40 (FIG. 6) installed in the host device in the form of, for example, a driver.

In a DVD-based recording medium, a UDF File System is generally used for recording a data file. In this file system, some Volume and Fi
Except for the le Structure, an "Unallocated Space Bit Map" indicating use / unused of one sector of the data area is referred to for data access. This bitmap is recorded in a predetermined control area of the optical disc.

The replacement processing control unit 40 of the host device
An error is received from the recording / reproducing device side, and the reported defective portion (1 ECC 32 KB unit) is used (alloc
atedspace) and the next or nearby unused area (unall
ocated space). In this case, since the file becomes discontinuous there, the description of the ICB (Information Control Block) is changed on the file system.

On the other hand, defects in the Volume and File Structure portions not managed by the unused space bitmap are written in a predetermined reserved area. Since each piece of information is indicated by a pointer in the Volume and the File Structure, the replacement processing control unit 40 may change the pointer in accordance with the writing.

If an error is reported during the recording of one data file, the file from the beginning of the file to the defective block is discarded, and the block following the defective block is allocated to the recording of the file. It is also possible. In this case, the useless area increases, but there is little practical problem since the capacity is originally expected to have a margin.

(Effects of the Embodiment) According to the configuration described above, the following effects can be obtained.

First, replacement processing in an audiovisual file can be completely eliminated, and real-time performance in recording / reproduction can be maintained.

That is, the replacement process involves many seeks, writes, and verifications. Therefore, in the case of an audiovisual file having a large error correction unit, the buffer memory overflows and recording is interrupted.

Host IF command, for example, Set Stream
With ing Command, there is a method to actually turn off the replacement process.However, in a block that has been replaced before that, seek occurs to the replacement destination, continuous read / write can not be performed, and recording interruption due to buffer overflow at write time The possibility remains.

On the other hand, according to the embodiment of the present invention, the replacement process can be completely eliminated, so that the above-mentioned inconvenience can be solved. Further, by not performing the replacement process, there is an effect that the performance required for the audiovisual file can be maintained.

Second, with the current DVD + 4.7 GB, D
Complete compatibility with VD-ROM can be realized.

In the case of DVD + RW 4.7 GB, DV
D-ROM compatibility is a major feature. Physically, a recorded medium can be read almost directly by a DVD-ROM drive. That is, DVD + RW
When the 4.7 GB format is compared with the DVD-ROM format, Physical Address, Track Pitch and l
inear Density is the same. DVD + RW4.
The 7 GB drive accesses the optical disk by using a wobble address.
Since the same address data as in the M disk is located at the head of each sector, it is possible to access the DVD-ROM drive in the same manner as the DVD-ROM disk.

Therefore, if compatibility at the logical level can be obtained, a DVD-ROM, which is widely used as a read device, can be used as a read device.
It is thought that ROM can be used. this is,
It is similar to the relationship between CD-ROM and CD-R / RW, which is a great merit. However, DVD + RW4.7
If there is at least one replacement in the GB format, it cannot be said that the DVD-ROM is compatible with the logical level. At present, compatibility cannot be achieved unless the DVD-ROM drive supports defect management.

On the other hand, in this embodiment, as described above, it is possible to completely prevent the occurrence of alternation at the time of recording information, so that DVD + RW 4.7 GB (completely compatible with DVD-ROM) is used. (Recordable / reproducible optical recording medium).

Third, for a data file other than an audiovisual file, by controlling how to return an error, there is an effect that the host side can handle it by a replacement process.

That is, DVD-RAM (2.6 GB, 4.7 GB), DV
In D + RW (3.0 GB), it was initially determined that the drive should perform defect management, so that performing the defect management in the host-side file system was not considered from the beginning. However,
In situations where virtually only the UDF File System is used, this decision is not always correct and it is possible for the host file system to effectively perform the replacement process.

In the present invention, the method of returning an error is distinguished between an audiovisual file and another data file. Therefore, for a data file requiring reliability, the file system on the host device side performs a replacement process. It is possible to do.

When the replacement process cannot be performed by the host, the medium (recording area) in which the defect is found cannot be used basically. However, in this case, how much discarded media occurs is a major problem.
ECC (error correction code) in units of 2 KB (16 sectors)
Is used, is very strong, and is about 4 mm (4.
(In the case of 7 GB) can be corrected. If sufficient checks are made at the stamper creation level of media creation and attention is paid to manufacturing, media manufacturing without defective blocks is also possible. Also, shipping sorting is possible.

(Modifications) The present invention is not limited to the above-described embodiment, and can be variously modified without changing the gist of the invention.

For example, the defect management flag may be set anywhere as long as the location is determined. However, with DVD + RW 4.7 GB, it is appropriate to set a flag in the FDCB. The bit position of the details is arbitrary.

In the above-described embodiment, the inspection (Certify) is executed at the time of formatting so that the defective block can be registered. However, the inspection (Certify) may not always be performed.

Further, in the above-described embodiment, the replacement process is performed on the host side by returning an error when writing to the defective block is performed. However, when the file type is only an audiovisual file, In
Such processing is unnecessary.

On the other hand, with DVD + RW 4.7 GB, Back Ground Fill, Back Ground Certif
ication may be performed. Back Ground Fill means that when the drive has not received a command from the host, the drive itself writes the unrecorded portion on the medium with data of 00. Back Ground Cert
The verification means that after the back ground fill, when the drive has not received a command, the verification (Verify), that is, the latter half of the verification (Certify) is executed.

In this case, the result is the same as when the inspection is executed at the time of formatting. However, in the middle of the inspection, the part is divided into an inspected part and a part that has not been inspected yet.
The progress status of BackGround Fill and Back Ground Certification is always PSN (Physical Sect)
or Number). In this case, in the processing shown in FIG. 7, for the part for which inspection has been completed, the found defect list is referred to, an error is returned for the defective part, and for a part which has not been inspected, a write command is written and verified. What is necessary is just to interpret as a command.

[0080]

As described above, according to the present invention, there are provided an optical recording medium capable of compensating for a defect caused by the conventional defect management or replacement processing, and a recording / reproducing apparatus using the optical recording medium. can do.

Further, according to the present invention, there is provided an optical recording medium capable of selectively executing a replacement process on the host side according to the type of data, and a recording / reproducing apparatus using the optical recording medium. Can be.

[Brief description of the drawings]

FIG. 1 is a plan view of an optical storage medium according to an embodiment of the present invention.

FIG. 2 is a schematic configuration diagram showing the format of the entire storage medium.

FIG. 3 is a diagram showing a format example of an FDBC described in an Inner Disk Identification Zone.

[Fig.4] Similarly, Formatting Status and FDBC
The figure which shows the example of a format in Mode information.

FIG. 5 is a flowchart showing a processing procedure at the time of format processing.

FIG. 6 is a schematic configuration diagram showing a recording / reproducing apparatus.

FIG. 7 is a flowchart showing a processing procedure at the time of writing processing.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Optical disk 2 ... Data area 3 ... Lead-in area 4 ... Lead-out area 5 ... Defect block 6 ... Replacement block 7 ... Replacement area 10 ... Recording / playback part 11 ... Control part 12 ... Spindle motor 13 ... Optical pickup 15 ... Driver Reference Signs List 16 servo circuit 18 CPU 19 ROM 20 RAM 21 bus 23 analog signal processing circuit 24 digital signal circuit 25 buffer memory 26 buffer control circuit 28 host device 29 host interface circuit 31 write / read Unit 32: Replacement process execution unit 33: Replacement process suppression unit 34: Defect management event flag change unit 35 ... Data type determination unit 36 ... Error control unit 40 ... Replacement process control unit

Continued on the front page (51) Int.Cl. ⁷ Identification code FI Theme coat II (reference) G11B 20/18 572 G11B 20/18 572C 572F F term (reference) 5D044 BC05 CC06 DE54 DE64 5D066 DA02 DA11 5D090 AA01 BB05 CC02 CC11 DD03 EE03 FF27 FF36 GG02 GG12 GG17 GG30

Claims (11)

[Claims] 1. An optical recording medium on which data can be recorded and reproduced by using a laser beam, and a replacement indicating whether or not a replacement process is necessary in a predetermined area of the optical recording medium in advance. An optical recording medium on which processing necessary / unnecessary information is recorded. 2. The optical recording medium according to claim 1, wherein said replacement processing necessity / unnecessary information is recorded in a lead-in area of said optical recording medium. 3. The optical recording medium according to claim 1, wherein the optical recording medium is a recordable and reproducible recording medium compatible with a DVD-ROM. . 4. The optical recording medium according to claim 1, wherein a defective block registration unit in which a defective block of the recording medium is registered is provided in a predetermined area of the optical recording medium. An optical recording medium, comprising: 5. A method for recording / recording data on an optical recording medium.
A recording / reproducing unit for performing reproduction; and information indicating that replacement processing is not required is recorded in a predetermined area of the optical recording medium. And a control unit for continuously performing recording / reproduction by the recording / reproduction unit without returning a recording / reproduction error to the optical recording medium. 6. The recording / reproducing apparatus according to claim 5, wherein the control unit determines whether data to be recorded / reproduced on / from the optical recording medium is audiovisual data. And an error control unit for returning a recording / reproducing error in a defective block to the host when the data is not audiovisual data, the recording / reproducing apparatus for an optical recording medium. 7. The recording / reproducing apparatus according to claim 6, wherein, when the data to be recorded / reproduced is not audiovisual data, the error control unit performs a defect block inspection by writing / reading data at the time of data recording. A recording / reproducing apparatus for an optical recording medium, comprising: a defective block inspection unit for performing the operation. 8. The recording / reproducing apparatus according to claim 6, wherein at the time of data recording / reproducing, replacement for executing replacement processing based on defective block information recorded in a predetermined area of the optical recording medium. A processing unit, and having a replacement processing suppression unit that suppresses the replacement processing by the replacement processing unit when information indicating that replacement processing is not necessary is recorded in a predetermined area of the optical recording medium. A recording / reproducing apparatus for an optical recording medium, comprising: 9. The recording / reproducing apparatus according to claim 8, further comprising a replacement process for recording / erasing information indicating that a replacement process is not necessary for a predetermined area of the optical recording medium. / Recording / reproducing apparatus characterized by having unnecessary information recording means. 10. The recording / reproducing apparatus according to claim 6, wherein the optical recording medium is a recordable / reproducible recording medium compatible with a DVD-ROM. . 11. A host device connected to the recording / reproducing device according to claim 6, wherein the host device uses a file system when a recording / reproducing error is returned from the recording / reproducing device. A host device having a replacement processing function unit for performing a replacement process by allocating another block instead of a defective block.