Patent ID: 8416665

Claim:
An information storage medium which stores data recorded using a waveform, comprising information on a recording pattern of the waveform and an erase pattern of the waveform, wherein: the recording pattern comprises a beginning pulse, a multi pulse, and a cooling pulse; the erase pattern comprises a first pulse and a multi pulse having a first power level and a second power level; and the information comprises: first information on a power level of the first pulse of the erase pattern connected to an end of the cooling pulse; second information on a power level of a period between a point where Non Return to Zero Inverted (NRZI) data is transited from a low level to a high level and the beginning pulse of the recording pattern; third information which is used to obtain a duration of a period corresponding to the first power level of the multi pulse in the erase pattern; and fourth information which is used to obtain a duration of the period between the point where Non Return to Zero Inverted (NRZI) data is transited from the low level to the high level and the beginning pulse of the recording pattern.