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专利名称：ACCESS CONTROLLED OPTICAL DISC AND
METHOD THEREFOR
发明人：KNOX, Alistair, John,WIJNEN, Arie, Marinus申请号：EP03763977.0申请日：20030708公开号：EP1537572B1公开日：20080102
摘要：An optical disc is disclosed having a set of primary tracks and a set of alternatetracks. At least some of the primary and alternate tracks are associated. When a CD-DAreader accesses the optical disc, it locates only the primary tracks. By contrast, when adata reader such as a CD-Rom drive accesses the disc, modifications to the Table ofContents (TOC) cause the data reader not to access a given primary track but instead tobe directed to its associated alternate track. This alternate track may contain audio (CD-DA) data which may or may not correspond with the CD-DA data in the associatedprimary track. The alternate tracks may be copy protected, and/or may includecompressed (not CD-DA) data which is the subject of digital rights management.
申请人：H T A HIGH TECH APPLIC HOLDING
地址：CY
国籍：CY
代理机构：Frost, Alex John
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