INFORMATION RECORDING METHOD AND INFORMATION RECORDING DEVICE

摘要

In an information recording method in which a recording power of a particular mark length performs recording with a different value from a recording power of another mark length, it is possible to obtain an optimal value of each recording power and perform recording with a high accuracy. The method includes: first trial write steps (S1 to S3) for performing trial write of predetermined first test data while stepwise changing the recording power excluding a particular pattern =3T and calculating a first optimal recording power Pw (opt) from the reproduction signal of the trial write data recorded; and second trail write steps (S4 to S6) for stepwise changing the recording power for the particular pattern =3T while for the other patterns, performing trial write of predetermined second test data using the recording power as the calculated first optimal recording power, and calculating a second optimal recording power Pwex(opt) which is an optimal recording power of a particular pattern from the reproduction signal of the trial write data recorded. Thus, it is possible to form all the mark lengths with a high accuracy and perform highly-accurate recording.