OPTICAL RECORDING METHOD, OPTICAL RECORDER, AND OPTICAL RECORDING MEDIUM

摘要

The jitter of a reproduction signal can be reduced when data is recorded at a plurality of linear velocities on a high-density optical recording medium. The method is for recording data at a plurality of linear velocities or at a continuously varying linear velocity. The recording waveform for modulating a recording light beam has a dc part and a recording pulse part. In recording, the inequalities PbiH/PbiL<1, (PbiH / PwH) / (PbiL / PwL)<1 are satisfied where Pbi is the intensity of the dc part, Pw is the intensity of a positive pulse, PwL and Pbi L are the values of the Pw and Pbi when data is recorded at a linear velocity VL respectively, PwH and PbiH are the values of Pw and Pbi when data is recorded at a linear velocity VH that satisfies the inequality 1.1