| 摘要 |
PROBLEM TO BE SOLVED: To provide a wobbling system appropriate for a high-density disk.SOLUTION: A disk recording medium comprises a recording/reproducing area and a reproduction dedicated area. In the recording/reproducing area, a groove for forming a track on a disk is formed spiral, address information is recorded by wobbling the groove, and the track formed from the groove is used for recording/reproducing phase change mark information. In the reproduction dedicated area, pre-recorded information is recorded by wobbling the groove. The address information recorded by wobbling the groove in a phase corresponding to the predetermined number of units of data recorded in the recording/reproducing area with a recording mark is comprised of a plurality of address blocks each comprised of a sync part and a data part, the data part is comprised of fifteen ADIP blocks and each ADIP block includes ADIP data of four bits. |
