INFORMATION RECORDING MEDIUM, INFORMATION REPRODUCING DEVICE, AND INFORMATION REPRODUCING METHOD

摘要

PROBLEM TO BE SOLVED: To secure the secrecy of information for controlling recorded copy. SOLUTION: A recording mark is formed at a position varied in the intersecting direction to a read-out direction in accordance with a wobble signal on a master disk DS. The wobble signal is obtained by modulating second data including bit string constituted of irregular patterns with the prescribed modulation system. COPYRIGHT: (C)2005,JPO&NCIPI