Patent ID: 8270258

Claim:
A recording power determination method for determining a recording power of an optical beam for recording data on an information recording medium, wherein the information recording medium has a value of Mind and a value of ρ recorded thereon, the method comprising: a value reading step of reading the value of Mind and the value of ρ recorded on the information recording medium; a confirming step of recording test data on the information recording medium at a plurality of test recording powers, reading the test data recorded at each of the plurality of test recording powers, generating a signal, measuring a plurality of modulation factors of the signal corresponding to the plurality of test recording powers, and confirming that largest modulation factor among the plurality of modulation factors is larger than the value of Mind and that the smallest modulation factor among the plurality of modulation factors is smaller than the value of Mind; a first recording power calculating step of calculating a first recording power based on the plurality of test recording powers and the plurality of modulation factors; and a recording power calculating step of calculating the recording power based on the first recording power and the value of ρ.