OPTICAL RECORDING MEDIUM, METHOD FOR RECORDING INFORMATION, METHOD FOR REPRODUCING INFORMATION

摘要

PROBLEM TO BE SOLVED: To provide a recording strategy for satisfactorily recording information in a write-once single-sided double layer medium.

SOLUTION: When a channel clock period used in recording a record mark with a length of ≥2T is represented by T, a pulse is used in recording a record mark with a length of 2T, and a plurality of pulses are used in recording a recording mark with a length of ≥3T. A pulse width in recording a 2T mark, or widths of the last pulses at the ends of the plurality of pulses in recording marks with lengths of ≥3T are set within a predetermined range.

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