OPTICAL STORAGE MEDIUM, INFORMATION RECORDING APPARATUS AND INFORMATION REPRODUCING APPARATUS

摘要

PURPOSE: An optical storage medium, an information recording apparatus and an information reproducing apparatus are provided to effectively prevent the illegal usage of the optical storage medium involving infringement on CONSTITUTION: The optical storage medium includes a main information region(41b) and a control data region(41a). Encrypted data information is recorded in the main information region(41b) as a pit row that is capable of being read out by means of light. In the control data region(41a), key information for decoding the encryption of data information, physical format information and optical storage medium manufacturing information are recorded by wobbling a groove.