Optical disk, optical disk recording and reproducing apparatus, method for recording, reproducing and deleting data on optical disk, and information processing system

An optical disc recording and optical disc technology, which is applied to optical discs, optical disc recording and reproducing equipment, recording, reproducing and deleting data on optical discs, and the fields of information processing systems, and can solve the problems of cryptographic robustness, extending key length, etc.
CN1831959AInactive Publication Date: 2006-09-13PANASONIC CORP
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
PANASONIC CORP
Publication Date
2006-09-13
Estimated Expiration
Not applicable · inactive patent

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Abstract

A recording type optical disk on which data is recordable includes a data recording and reproducing area for recording data therein and reproducing data therefrom, and a read-only disk identification information area for recording disk identification information for identifying the optical disk therein. In the optical disk, the disk identification information is formed by removing a reflection film that is formed on the optical disk in a strip shape. The disk identification information includes an inherent disk identifier for each optical disk, and the data recording and reproducing area includes an area for recording encrypted data therein. The encrypted data is encrypted by using information including the disk identification information for identifying the optical disk as a key.
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Description

technical field

[0001] The present invention relates to an optical disc, an optical disc recording and reproducing apparatus, a method of recording, reproducing and deleting data on an optical disc, and an information processing system. In particular, the present invention relates to an optical disc, an optical disc recording and reproducing apparatus, a method for recording, reproducing and erasing data on an optical disc, and an information processing system, which can prevent data transfer from one optical disc to another recording medium such as an optical disc of another recording type. etc. carry out illegal digital duplication, on the original optical disk, for example, data including AV data (audio and video data) such as movie image data and music sound data with copyright protection are recorded. Background technique

[0002] Optical discs are superior to conventional magnetic tape media in terms of random access, and have the advantage of reducing deterioration in...

Claims

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