| 摘要 |
In order to provide an optical disk of a small radius suitably used in recording/reproducing data at a high density and an optical disk apparatus capable of according/reproducing information into/from such an optical disk, the optical disk of the present invention uses both the grooves and lands as recording tracks. each recording track is divided into a plurality of sectors each including an address segments ASG 0 and ASG 1, and data segments DSG 0-DSG 52. The address segment 0 (ASG 0) and address segment 1 (ASG 1) respectively have wobbled areas in the opposite side walls, by which the address information is recorded. The data segments are non-wobbled DC grooves. Further, each segment is provided with a clock mark.
|
