OPTICAL RECORDING MEDIUM, REPRODUCTION APPARATUS OF OPTICAL DISK, REPRODUCTION METHOD OF OPTICAL DISK, PRODUCTION METHOD OF ORIGINAL DISK OF OPTICAL DISK, AND ILLEGAL PROGRAM OPERATION STOP METHOD

摘要

The present invention provides an optical disc in which main information was recorded by arranging a plurality of marks or pits in accordance with a modulation signal such that said marks or pits are arranged at predetermined positions at an interval which is n times a predetermined period T wherein n is a positive integer, said predetermined positions being shifted in a circumferential direction in accordance with sub information when said marks and pits are formed. IMAGE