Patent ID: 6987717

Claim:
An information recording device writing information in a circumferential direction of a disk-type recording medium with a substantially constant linear density, the device comprising: test-writing means for performing a test-writing in a predetermined area on said disk-type recording medium at a predetermined basic linear velocity so as to determine an optimum recording power at said basic linear velocity according to a result of said test-writing; and recording-power setting means for setting a recording power according to a result of a predetermined calculation performed to said optimum recording power, when a recording is performed on said disk-type recording medium at a linear velocity different from said predetermined basic linear velocity; and wherein said test-writing means includes optimum recording-state storing means for storing a value in accordance with a reproduction signal reproduced from said disk-type recording medium as an optimum recording-state targeted value, when a recording is performed on said disk-type recording medium with said optimum recording power; and said recording-power setting means includes: recording-state targeted value setting means for setting a recording-state targeted value according to a result of a predetermined calculation performed to said optimum recording-state targeted value, when the recording is performed on said disk-type recording medium at the linear velocity different from the predetermined basic linear velocity; and power correcting means for correcting said recording power by comparing said recording-state targeted value with said value in accordance with a reproduction signal reproduced from said disk-type recording medium during a recording of information to said disk-type recording medium.