RECORDING MEDIUM DATA RECORDING METHOD AND DEVICE

摘要

A method for recording data as edge position information on the edges of marks and spaces having a plurality of length by applying a pulse energy beam onto a recording medium. Let the shortest code length of a recording code sequence created according to data to be recorded be denoted by n (n is an integer of 1 or greater). If the code length x of a code is n, n+1, or n+2, a recording waveform of one recording pulse is assigned to the recording mark forming period for the code. If the code length x of the code is n+3 or more, a recording waveform of a plurality of recording pulses is assigned to the recording mark forming period for the code.