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Optical disc, optical disc reproducing method and apparatus, and optic disc recording method

A technology for optical discs and equipment, which is applied in the directions of recording/reproducing by optical methods, optical record carriers, and optical record carrier manufacturing, and can solve problems such as copyright infringement.

Inactive Publication Date: 2003-11-26
SONY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, such illegal digital duplication will infringe the copyrights owned by copyright owners like recording companies, artists, etc.

Method used

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  • Optical disc, optical disc reproducing method and apparatus, and optic disc recording method
  • Optical disc, optical disc reproducing method and apparatus, and optic disc recording method
  • Optical disc, optical disc reproducing method and apparatus, and optic disc recording method

Examples

Experimental program
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Embodiment Construction

[0027] Referring now to FIG. 1, FIG. 1 schematically illustrates an optical disc playback system according to the present invention. An optical disc playback system is generally indicated by reference numeral 1 . The optical disc playback system 1 includes a first-type optical disc player 40 capable of reproducing the first-type optical disc, a device capable of reproducing the first-type optical disc and recording data therein in a format different from that in which data is recorded in the first-type optical disc. The second type optical disc player 60 of the second type optical disc, and in addition to being able to play back the first type and the second type optical discs, can also reproduce the data in a format different from that of the first type optical disc and the second type optical disc. A third-type optical disc player 80 in which data is recorded in a third-type optical disc format.

[0028] In the present invention, the first-type optical disk is a CD-DA (Digi...

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Abstract

An optical disc reproducing method comprises the steps of reading identification data recorded on an optical disc loaded in an apparatus, judging on the basis of the read identification data whether or not the optical disc is of a type in which the optical disc has at least first and second recording areas, a first lead-in area is provided inside the first recording area, a first lead-out area is provided outside the first recording area, a second lead-in area is provided outside the first lead-out area and between the first lead-out area and the second recording area, and a second lead-out area is provided outside the second recording area, and starting, if judged so, with reproduction of the second recording area.

Description

technical field [0001] The present invention generally relates to optical discs, optical disc playback methods and devices, and optical disc recording methods, and more particularly to optical discs such as those having a first session (session) in which data is recorded in a first format and a second session in which data is recorded in a second format. A multi-track type optical disc, an optical disc playback method and apparatus for reading data thus recorded on the optical disc, and an optical disc recording method for recording such data to the optical disc in such a manner. Background technique [0002] Conventional compact discs, each of which is an optical disc, include CD-DA discs (Digital Audio Discs) with pre-recorded music data, CD-DA discs with pre-recorded text data, program data related to computer software, etc. ROM disc (Disc Read Only), CD-R disc (Compact Disc Recordable) on which data can be additionally recorded, CD-RW disc (Compact Disc Rewritable) on wh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G11B7/007G11B7/24035G11B7/2405G11B7/24079G11B7/26G11B19/12G11B20/00G11B20/10G11B20/12G11B20/14G11B20/18
CPCG11B20/00086G11B20/00094G11B19/125G11B20/1833G11B7/261G11B7/00736G11B20/1217G11B19/12G11B2020/1235G11B7/26G11B20/1426G11B20/00123G11B20/00115G11B2007/00709
Inventor 佐古曜一郎古川俊介
Owner SONY CORP