Patent ID: 7564773
Filing Date: 2009-07-21
Classification: G11B

Abstract:
1. An optical disk having multiple grooves and multiple lands arranged alternately in the disk radial direction and wobbling address data recording regions formed on said multiple grooves, wherein said address data recording regions comprises a pair of wobbling sections having an identical phase formed on both sidewalls of said groove, wherein adjacent grooves in the disk radial direction of said multiple grooves have a pair of wobbling sections having an identical phase, and said lands have a section flanked by said pair of wobbling sections, wherein said address data recording regions formed on said multiple grooves have a first recording region indicating the individual address of a groove and a second recording region indicating the address of another groove adjacent to said groove, said multiple grooves are arranged in a manner in which said first recording region of a groove and said second recording region of another groove adjacent to said groove face each other with an intervening land, and their wobbling sections have an identical phase, wherein said first and second recording regions of multiple grooves are staggered in the disk circumferential direction between the grooves adjacent to each other in the disk radial direction, and the regions where said first and second recording regions face to each other with an intervening land are not adjacent to each other in the disk radial direction, wherein said multiple grooves are arranged in a manner in which first to third grooves are repeatedly provided in the disk radial direction and have a non-track address region where track address data recording is prevented, wherein said first groove comprises a region indicating the track address of said first groove, a non-track address region, and a region indicating the track address of the third groove that is adjacent to said first groove, arranged in the disk circumferential direction in this order, wherein said second groove comprises a region indicating the track address of the adjacent first groove, a region indicating the track address of said second groove, and a non-track address region, arranged in the disk circumferential direction in this order, and wherein said third groove comprises a non-track address region, a region indicating the track address of the adjacent second groove, and a region indicating the track address of said third groove, arranged in the disk circumferential direction in this order.