| 摘要 |
<p>An optical disk medium has at least one zone including track grooves formed in a CAV format. Each track groove has a wobbling structure composed of a single-period fundamental wave. Information is recorded in the wobbling structures. In the at least one zone, the phase of the fundamental wave constituting the wobbling structure in a track groove is different by 90° from those of the adjacent track grooves. As a result, the crosstalk does not influence the detection of the information recorded in the wobbling structure.</p> |
