Patent ID: 6388978
Filing Date: 2002-05-14
Classification: G11B

Abstract:
An optical recording method for recording information on a phase-change optical recording medium which is recordable at a low-linear-velocity and a high-linear-velocity greater than the low-linear-velocity, the optical recording method comprising the steps of:determining a ratio (Pel/Pwl) of an erasing power Pel to a recording power Pwl in the low-linear-velocity recording and a ratio (Peh/Pwh) of an erasing power Peh to a recording power Pwh in the high-linear-velocity recording so that the ratio (Pel/Pwl) and the ratio (Peh/Pwh) satisfy the relationship {(Pel/Pwl)recording information on the phase-change optical recording medium and/or erasing information recorded on the phase-change optical recording medium by projecting a light beam onto the phase-change optical recording medium according to the recording power and the erasing power determined in the determining step; and wherein the determining step includes the step of determining the erasing power Pel and the recording power Pwl in the low-linear-velocity recording and the erasing power Peh and the recording power Pwh in the high-linear-velocity recording so that the ratio (Pel/Pwl) and the ratio (Peh/Pwh) satisfy the relationship {(Pel/Pwl)=AÃ—(Peh/Pwl)}, where A&lE;0.9.