Patent ID: 7539111
Filing Date: 2009-05-26
Classification: G11B

Abstract:
1. An optical disc comprising: a data recording area for recording data; and a drive information area for recording drive-specific information, wherein: the drive information area comprises a plurality of clusters, each cluster comprises a plurality of sectors, each sector has capacity for storing one record of drive-specific information, the plural records of drive-specific information are arranged in an order in which the plural records were recorded with a last-recorded record of the plural records of drive-specific information located in a first sector of a current cluster following a last sector of a previous cluster, new drive-specific information is newly recorded to a first sector in a new cluster, information from all sectors except a last sector in an immediately preceding cluster is newly recorded to sectors following the first sector in the new cluster which includes the new drive-specific information, the immediately preceding cluster being recorded with all previous records of drive-specific information, and the new cluster is immediately next to the preceding cluster in the same drive information area in the optical disc.