| 摘要 |
A disk-like recording medium is provided with recording tracks (TK), each of which includes recording sectors (SC1, SC2, ---, SCm). Each of the recording sectors includes a recording region (ARC) for control and a subsequent region (ARD) for writing data. The invention further deals with a disk apparatus using the disk-like recording medium. In the recording region (ARC) for control of the disk-like recording medium are provided a clock data pit (QB), a pair of tracking data pits (QA, QC) positioned inside and outside a track center line (KC) being separated at a predetermined distance from the clock data pit (QB), and a pair of traverse data pits (QD, QE) being separated from each other at a distance allotted depending upon the recording tracks (TK). In recording or reproducing the data using a light beam, the clocks are reliably reproduced under a stable tracking condition, and traverses can be counted. |
