Patent ID: 7359301

Claim:
A method of recording data on an optical recording medium, comprising: forming a mark or a space using a recording waveform which includes a record pattern and an erase pattern, wherein the record pattern includes multiple pulses of different power levels for forming the mark, the multiple pulses including a first pulse, a second pulse having a higher power level than a power level of the first pulse, a third pulse having a power level between the power level of the first pulse and the power level of the second pulse, and a cooling pulse having a lower power level than the power level of the first pulse, wherein a duration of the third pulse is determined by a length of the mark, wherein the erase pattern includes multiple pulses of different power levels, including a high power level and a low power level for forming the space, and wherein a power level of the first pulse in the record pattern is one of the high power level and the low power level of the multiple pulses in the erase pattern, and a power level of a first pulse of the erase pattern is the high power level or the low power level of the multiple pulses of the erase pattern, and a power level of a last pulse of the erase pattern is the high power level or the low power level of the multiple pulses of the erase pattern.