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Recording and/or reproducing method for recording medium, and recording and/or reproducing device for recording medium

A technology of a recording medium and a playback device, which is applied in the directions of information recording, magnetic recording, data recording, etc. on a magnetic disk, can solve the problems of increasing the production cost of the optical disk, reducing the data recording capacity of the optical disk, and increasing the labor of the manufacturer.

Inactive Publication Date: 2005-04-27
SONY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in this method, not only the data recording capacity of the optical disc is reduced, but also the amount of labor paid by the manufacturer is increased.
As a result, the production cost of optical discs also increases

Method used

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  • Recording and/or reproducing method for recording medium, and recording and/or reproducing device for recording medium
  • Recording and/or reproducing method for recording medium, and recording and/or reproducing device for recording medium
  • Recording and/or reproducing method for recording medium, and recording and/or reproducing device for recording medium

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Embodiment Construction

[0022] The best way to implement the invention

[0023] Next, an embodiment of the present invention will be explained. According to this embodiment, the present invention is applied to a CD-RW disc or a CD-R disc. Referring to FIG. 1, a recording and / or reproducing apparatus (hereinafter referred to as a drive) for a CD-RW disc will be explained. In FIG. 1, reference numeral 1 denotes an optical disc-for example, a CD-RW disc. A spindle-shaped motor 2 causes the optical disc 1 to rotate at a constant linear velocity or a constant angular velocity. In order to write data to and read data from the optical disc 1, an optical head 3 is provided. The optical head 3 is moved in the radial direction of the optical disc 1 by the feed motor 4.

[0024] The optical disc 1 according to the present embodiment is a phase-change optical disc in which data is written by a laser beam having an output level required for writing data, and the data is reproduced according to changes in the amount o...

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Abstract

A recording and reproducing method for a record medium including the steps of reading type information from the record medium when data is recorded to or reproduced from the record medium on which the type information is recorded; reading type information from a recording and reproducing apparatus for the record medium; comparing the type information read from the record medium with the type information read from the apparatus; and performing a recording or reproducing process for the record medium using information corresponding to the type information stored in the apparatus when the type information read from the record medium matches the type information read from the apparatus.

Description

Technical field [0001] The present invention relates to a recordable recording medium, a recording or reproducing method for the recording medium, and a recording or reproducing apparatus for the recording medium, in particular, it relates to situations where the recorded content is protected by copyright. Background technique [0002] In recent years, optical discs as large-capacity recording media have been developed. For example, CD discs on which music data is recorded in advance, CD-ROM discs on which computer data is recorded, and DVD discs (digital versatile discs or digital video discs) for processing video information are well known. . These CDs are read-only CDs. Recently, such as CD-R (CD-Recordable), CD-RW (CD-rewritable), DVD-R (DVD-Recordable), DVD+RW (DVD-rewritable), and DVD-RAM (DVD-Random Memory) Optical disks such as memory access, on which data can be written or rewritten last time, are also being put into practical use. [0003] Certain content such as video ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F21/10G06F21/60G06F21/62G11B19/12G11B20/00G11B20/10G11B20/12G11B27/19G11B27/24G11B27/30
CPCG11B20/0021G11B20/1217G11B19/122G11B27/3027G11B27/24G11B20/00086G11B20/10G11B20/00362G11B20/00405G11B27/19G11B20/00347G11B20/00115G11B19/02
Inventor 佐古曜一郎猪口达也
Owner SONY CORP
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