RECORDING METHOD AND RECORDING DEVICE FOR OPTICAL RECORDING MEDIUM

摘要

PROBLEM TO BE SOLVED: To provide a recording method and a recording medium for an optical recording medium in which a recording power is suppressed even when a recording speed is changed from a single speed by making clear a relation between the laser emitting pulse width of a shortest recording signal and the recording power when the recording speed is changed. SOLUTION: In the recording method and the recording device for the optical recording medium for writing information on the optical recording medium by the pulsed emission of a laser corresponding to the recording signal when writing the information on the optical recording medium, in the case of recording changing the recording speed, the laser emitting pulse width of the shortest recording signal and the recording speed satisfy the following relational expression of S=(R+(0.7×logV/log2))±0.04 (T) (R is the laser emitting pulse width of the shortest recording signal when the recording speed is the single speed, S is the laser emitting pulse width of the shortest recording signal when the recording speed is a V-fold speed, and T is a value with (1/clock frequency) as 1T) and the recording device has a setting means for the pulse width.