Patent ID: 6754155
Filing Date: 2004-06-22
Classification: G06F,G11B,H04L,Y04S

Abstract:
An information processing device comprising a disk-shaped information recording medium permitting data recording and reproducing, wherein said disk-shaped information recording medium comprises:a data zone permitting data recordings and reproducing, and a servo zone for recording servo information for positioning a head which performs data recording or reproducing relative to said information recording medium, and ID information for identifying the individual information recording medium is recorded in said servo zone, wherein said information processing device comprises: means for performing data recording and reproducing to and from said information recording medium, ID information read means for reading said ID information from said servo zone, wherein said ID information read means reads said ID information recording servo zone data as ID information based on ID information recording servo zone region information of said information recording medium on which ID information is recorded, and said ID information read means comprises means for executing an ID information read program generated in correspondence with said ID information recording servo zone region information, ID comparison means for performing a comparison of license information generated based on said ID information and said ID information when distribution information from external information providing means is recorded on the information recording medium, and storage enabling means which enables storage of information from external information providing means on said information recording medium only when it is confirmed that said license information is information created based on said ID information as a result of the comparison in said ID comparison means.