Copy Protection System for Data Carriers

The optical disc carrying a session including a table of contents and a program area containing at least one track, the table of contents indicating a first start position, wherein:

• a. a data portion is located at said first start position and is arranged to cause a read failure by a first optical disc reader, which reads at said first start position;
• b. the track is located at a second start position different from said first start position;
• and
• c. the session further includes an index indicating said second start position, such that a second optical disc reader is enabled to read the track by reading the second start position from the index.

A method of manufacturing an optical disc, the method comprising:

• formatting source data to create a session including a table of contents and a program area containing at least one track, the table of contents indicating a track start position;
• and
• recording the formatted source data on the optical disc,
• wherein:
• a. a data portion is located at said first start position and is arranged to cause a read failure by a first optical disc reader, which reads at said first start position;
• b. the track is located at a second start position different from said first start position;
• and
• c. the session further includes an index indicating said second start position, such that a second optical disc reader is enabled to read the track by reading the second start position from the index.