Patent ID: 7570563

Claim:
An optical recording method of a phase-change optical recording medium comprising: controlling an irradiation power by three values, namely a peak power (Pp) which is the irradiation power of a heating pulse, a bottom power (Pb) which is the irradiation power of a cooling pulse and an erase power (Pe) for erasing a recording mark; and recording by varying an irradiation time of each pulse in proportion with a clock T corresponding to the recording linear velocity, wherein the phase-change optical recording medium comprises a phase-change recording layer on a substrate, wherein a light irradiated on the phase-change optical recording medium comprises a pulse string of heating pulses and cooling pulses, and a light for erasing, wherein at least any one of Pe/Pp, Pp, Pb and Pe is set variable within a range from the minimum recording linear velocity to the maximum recording linear velocity of the phase-change optical recording medium, wherein a peculiar recording linear velocity is a recording linear velocity at which jitter degrades abruptly to show a local maximum value, and wherein the optical recording method performs a recording by varying at least Pe/Pp from a specific recording linear velocity which is lower than the peculiar recording linear velocity.