Method for controlling access to disc data and method for identifying disc

Abstract

A method for controlling access to data of a disc, comprising the steps of determining whether or not information intrinsic to a writable disc has been detected from data that had been read from the disc; when the determined result represents that information intrinsic to a writable disc has been detected, determining that the disc is a writable disc and at least restricting a regular operation of the disc; and when the determined result represents that information intrinsic to a writable disc has not been detected, determining that the disc is not a writable disc and executing a regular operation of the disc.

Description

technical field [0001] The present invention relates to a method of controlling data access to a disc and a method of judging a disc, and more particularly, to a method suitable for controlling access to a non-original disc produced as a duplicated disc. Background technique [0002] In recent years, various types of recording media have been developed and used to record digital data. For example, as compact discs, compact discs have become very common. The standard for Compact Disc (CD) is called Digital Audio Disc (CD-DA). CD standards are based on descriptions in related standards documents, called Red Books. Various types of formats, such as the CD-ROM standard, have hitherto been standardized on the basis of this standard document, the so-called CD series. In the following description, CD stands for CD-DA disc. [0003] The CD series includes reproduction-only discs such as CD and CD-ROM (Compact Disc Read Only Memory) discs and writable recording and reproducing di...

AI Technical Summary

Problems solved by technology

In other words, it is difficult to protect the copyright of information recorded on CDs, CD-ROM discs, etc.

[0008] Since media such as CD and CD-ROM disks and their drives are widely used, re-adding copy protection is difficult

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