KR20040016538A - Method for recording disc information of high density read only optical disc and high density read only optical disc therof - Google Patents

Abstract

PURPOSE: A disc information recording method for an exclusive-playing HD optical disc and the exclusive-playing HD optical disc are provided to repetitively record disc information in the pit form proper for the exclusive-playing HD optical disc by a predetermined number of times, thereby normally carrying out the data playing operation corresponding to the disc information by reading the disc information. CONSTITUTION: In a disc information recording method for an exclusive-playing HD optical disc, disc information(DI) in the pit form is recorded in lead-in and lead-out areas of a BD-ROM. In a lead-in area, a DI block of 144 bytes added with parity of 32 bytes to DI of 112 bytes is repetitively recorded to a predetermined recording section corresponding to the second defect management area(DMA2) by about 14563 times. In a lead-out area, the DI blocks are repetitively recorded to a predetermined recording section corresponding to the third or fourth defect management area by about 14563 times. The DI includes management information required for data playing, except management information required for data re-writing.

Description

Disc information recording method of high-density reproduction-only optical disc, and the resulting high-density reproduction-only optical disc {Method for recording disc information of high density read only optical disc and high density read only optical disc therof}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of recording disc information of a high density reproduction only optical disc such as a reproduction only Blu-ray Disc Read Only (BD-ROM) and a high density reproduction only optical disc.

Recently, new high-density optical discs, such as rewritable Blu-ray discs (BD-RW), capable of recording and storing high-definition video data and high-quality audio data for a long time, are being developed. As shown in FIG. The BD-RW 100 may include a clamping area, a transition area, a burst cutting area (BCA), a lead-in zone, a data zone, The data recorded in the BD-RW 100 is divided into a lead-out zone and the like. The data is partitioned into a recording unit block (RUB) having a predetermined recording size corresponding to one error correction block unit.

Meanwhile, as shown in FIG. 2, the lead-in area of the BD-RW 100 is divided into a pre-recorded area and a rewritable area. A PIC area (Permanent Information & Control) is included in the pre-recorded area. first zone and second defect management for recording and storing defect management information according to a data recording zone when a replacement recording operation by defect detection is performed during data recording. An area (DMA: Defect Management Area) is included and assigned.

In addition, the lead-out area of the BD-RW 100 is a rewritable area, and also in the lead-out area, as shown in FIG. 3, third and fourth defect management for recording and storing defect management information. An area (DMA: Defect Management Area) is included and assigned.

Meanwhile, in the PIC area, disc information (DI) to be permanently stored, for example, as shown in FIG. 4, disc type information (Disc Type) and data zone allocation information (Data Zone Allocation), and the like. The same important disk information is repeatedly recorded five times in the form of a high frequency modulated (HFM) wobble, where the disk information has a recording size of 112 bytes excluding parity.

Therefore, in the optical disc recorder or the like, when the BD-RW 100 is inserted and seated in the apparatus, the disc information DI repeatedly recorded in the wobble form is read into the PIC area of the lead-in area, thereby the optical disc type information and data area. After confirming the allocation information or the like, the data recording operation or the reproduction operation corresponding to the disc information is normally performed.

Recently, however, development and standardization of high-density reproduction-only optical discs, such as a reproduction-only Blu-ray disc (BD-ROM), has been discussed among related companies. In the above-described high-density reproduction-only optical discs, information in the form of a wobble is recorded. Since it is impossible to read and confirm the disc information recorded in the wobble form in an optical disc player or the like, it is urgently required to prepare an effective solution for this.

Accordingly, the present invention has been created in view of the above-described circumstances, and provides the disc information DI in the form of a pit suitable for a high-density reproduction-only optical disc such as a reproduction-only Blu-ray disc (BD-ROM). Or a disc information recording method for repeatedly recording a predetermined number of times or more in a specific recording section in the lead-out area so that a normal reproducing operation corresponding to the disc information can be performed during the reproducing operation, and a high-density reproducing optical disc accordingly. There is a purpose.

1 shows the structure of a rewritable Blu-ray Disc (BD-RW),

FIG. 2 shows information recorded in a lead-in area of a rewritable Blu-ray Disc BD-RW in a table form.

FIG. 3 shows information recorded in a lead-out area of a rewritable Blu-ray Disc BD-RW in a table form.

4 shows disc information repeatedly recorded in a PIC area of a rewritable Blu-ray Disc (BD-RW) in a table form.

5 is a table showing disc information repeatedly recorded in a lead-in area or a lead-out area of a reproduction-only Blu-ray disc (BD-ROM) according to the present invention.

FIG. 6 is a table showing a detailed configuration of disc information repeatedly recorded in a lead-in area or a lead-out area of a reproduction-only Blu-ray disc (BD-ROM) according to the present invention.

Fig. 7 schematically shows the configuration of an optical disc apparatus for playing a reproduction-only Blu-ray disc (BD-ROM) according to the present invention.

※ Explanation of code for main part of drawing

11: optical pickup 12: VDP system

13: D / A converter 100: BD-RW

200: BD-ROM

Disc information recording method in the high-density reproduction-only optical disc according to the present invention for achieving the above object is to repeatedly record the disc information for the high-density reproduction-only optical disc in the lead-in area or the lead-out area in the form of pits. Features,

The high-density reproduction-only optical disc of the present invention is a high-density reproduction-only optical disc in which data is recorded in a recording unit block corresponding to one error correction block unit, and at least one of optical disc type information and data area allocation information. The disc information included is repeatedly recorded in the lead-in area or the lead-out area in the form of a pit.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a preferred embodiment of a disc information recording method of a high density reproduction-only optical disc and a high density reproduction-only optical disc according to the present invention will be described in detail with reference to the accompanying drawings.

First, the disc information recording method of the high-density reproduction-only optical disc according to the present invention can be applied to a process for producing a reproduction-only Blu-ray disc (BD-ROM), which is described above with reference to FIG. As described above, it may be divided into a clamping area, a transition area, a burst cutting area, a lead-in area, a data area, a lead-out area, and the like, and the data recorded on the BD-ROM is one error correction block (ECC Block). The recording unit block (RUB) having a predetermined recording size corresponding to the unit may be partitioned.

On the other hand, in the lead-in area and the lead-out area of the BD-ROM, disc information DI in the form of a pit is recorded and recorded. Among the lead-in areas of the BD-ROM, the above-described method is described with reference to FIG. In a specific recording section corresponding to the first defect management area DMA 1, a 144-byte disk information block DI block having 32 bytes of parity added to 112-byte disk information DI is provided. Can be repeatedly recorded more than a predetermined number of times.

For example, the specific recording section corresponding to the first defect management area DMA 1 may include 32 physical clusters having a recording size of 498 rows × 1932 channel bits. Since the recording size corresponds to 144 bytes, the disk information block of 144 bytes can be repeatedly recorded about 14563 times.

Therefore, as described above with reference to FIG. 4, wobble-type disc information repeatedly recorded five times in the PIC area of the BD-RW 100 and about 11000 times in the data area of the BD-RW 100 are repeated. All the disc information to be recorded can be recorded as disc information in a pit form within a specific recording section of the lead-in area of the BD-ROM.

In another embodiment according to the present invention, as shown in FIG. 5, a disk information block (DI Block) of 144 bytes in which 32 bytes of parity is added to the disk information (DI) of 112 bytes is shown. A predetermined number of disk information blocks, for example, 144 bytes, in a specific recording section corresponding to the second defect management area (DMA 2) in the BD-RW 100 in the lead-in area of the BD-ROM. This can be repeated about 14563 times.

A 144-byte disk information block (DI Block) in which 32 bytes of parity is added to the 112-byte disk information (DI) is added to the BD-RW 100 in the lead-out area of the BD-ROM. Can be repeatedly recorded a predetermined number of times, for example, about 14563 times in a specific recording section corresponding to the third defect management area (DMA 3) or the fourth defect management area (DMA 4).

On the other hand, according to another embodiment of the present invention, a 144-byte disk information block (DI Block) having 32 bytes of parity added to the 112-byte disk information (DI) is read from the BD-ROM. Among the in areas, the BD-RW 100 may record more than a predetermined number of times in a specific recording section corresponding to the first spare area (Reserved 1). In this case, the recording size of the first spare area may be Since the recording size corresponds to 160 physical clusters, the disk information block of 144 bytes can be repeatedly recorded about 72817 times.

The 144-byte disc information block (DI Block) is stored in a second spare area (Reserved 2) or a third spare area (Reserved 3) of the BD-RW 100 in the lead-in area of the BD-ROM. The recording size of the second free area may be recorded in a specific recording section respectively corresponding to the above, for example, since the recording size of the second free area has a recording size corresponding to 2048 physical clusters. Since the disk information block of bytes can be repeatedly recorded about 932067 times, and the recording size of the third free area has a recording size corresponding to 96 physical clusters, 144 bytes of disk information. The block can be recorded repeatedly about 43690 times.

Therefore, as described above with reference to FIG. 4, wobble-type disc information repeatedly recorded five times in the PIC area of the BD-RW 100 and about 11000 times in the data area of the BD-RW 100 are repeated. More disc information than wobble-shaped disc information to be recorded can be repeatedly recorded in a pit form within a specific recording section of the lead-in area or the lead-out area of the BD-ROM.

On the other hand, in the pit-type disc information repeatedly recorded in a specific recording section of the lead-in area or the lead-out area of the BD-ROM, only the management information necessary for data reproduction is recorded. For example, in FIG. As shown, management information for data rewriting, such as 4 bytes of management information for indicating a data recording speed and 1 byte of management information for indicating a data erasing flag, is described above. Excluded from disk information.

As a result, as shown in FIG. 7, in an optical disc player or the like including an optical pickup 11, a VDP (Video Disc Player) system 12, a D / A converter 13, or the like, a BD-ROM in a device may be used. When 200 is inserted and seated, the first and second of a specific recording section in which the pit-shaped disc information is repeatedly recorded in the lead-in area of the BD-ROM 200, that is, the lead-in area of the BD-RW 100; Search for a specific recording section corresponding to the second defect management area DMA 1,2 or the first to third spare areas 1,2,3, or the lead-out area of the BD-ROM 200. Search for a specific recording section in which the pit-shaped disk information is repeatedly recorded, that is, the specific recording section corresponding to the third and fourth defect management areas DMA 3 and 4 in the lead-out area of the BD-RW 100; Done.

Pit-type disc information repeatedly read in the specific recording section is read, and important disc information such as disc type information and data zone allocation information of the BD-ROM 200 is read. After confirming, the data reproducing operation corresponding to the disc information is normally performed.

Or more, preferred embodiments of the present invention described above, for the purpose of illustration, those skilled in the art, within the technical spirit and the technical scope of the present invention disclosed in the appended claims below, to further improve various other embodiments Changes, substitutions or additions will be possible.

The disc information recording method of the high-density reproduction-only optical disc constructed and configured as described above, and the high-density reproduction-only optical disc according to the above, is a pit type disc suitable for a high-density reproduction-only optical disc such as a reproduction-only Blu-ray disc (BD-ROM) By repeatedly recording the information DI in a specific recording section of the lead-in area or the lead-out area, the disc information recorded in the specific recording section is read and checked during a reproducing operation to correspond to the disc information. It is a very useful invention to be able to perform the data reproduction operation normally.

Claims (10)

A disc information recording method of a high density reproduction-only optical disc, characterized in that the disc information for the high-density reproduction-only optical disc is repeatedly recorded in the lead-in area or the lead-out area in the form of a pit. The method of claim 1, The disc information recording method of the high-density playback-only optical disc is repeatedly recorded in a defect management area included in a lead-in area of a rewritable Blu-ray disc or in a recording section corresponding to the free area. . The method of claim 1, And the disc information is repeatedly recorded in a pit form in a recording section corresponding to a defect management area included in a lead-out area of a rewritable Blu-ray disc. The method according to any one of claims 1 to 3, The disc information recording method of the high-density reproduction-only optical disc, wherein the disc information does not include management information for data rewriting. The method according to any one of claims 1 to 4, And the disc information is repeatedly recorded in a plurality of recording layers in the form of pits. In a high-density reproduction-only optical disc in which data is recorded in a recording unit block corresponding to one error correction block unit, A disk information containing at least one of optical disk type information and data area allocation information is repeatedly recorded in a pit form in a lead-in area or a lead-out area. The method of claim 6, And the disc information is repeatedly recorded in a pit form in a defect management area included in a lead-in area of a rewritable Blu-ray disc or a recording area corresponding to the free area. The method of claim 6, And the disc information is repeatedly recorded in a pit form in a recording section corresponding to the defect management area included in the lead-out area of the rewritable Blu-ray disc. The method according to any one of claims 6 to 8, And said disc information does not contain management information for data rewriting. The method according to any one of claims 8 to 9, And said disc information is repeatedly recorded in a plurality of recording layers in the form of pits.