Patent ID: 7636282

Claim:
An information recording apparatus for recording information onto an information recording medium by irradiating the information recording medium with laser light for recording, the information recording medium comprising: (i) recording layers in an order of a first recording layer and a second recording layer from an irradiation side of the laser light; (ii) a management information area in which a ratio information which indicates a ratio between (ii-1) a first recording power of the laser light irradiated in the second recording layer, which is transmitted through an unrecorded area of the first recording layer, and (ii-2) a second recording power of the laser light irradiated in the second recording layer, which is transmitted through a recorded area of the first recording layer, is recorded; and (iii) a recording power management area in which a recording power value information which indicates a value of the first recording power or the second recording power is recorded, said information recording apparatus comprising: a reading device for reading the ratio information recorded in the management information area and the recording power value information recorded in the recording power management area; a setting device for setting the recording power of the laser light on the basis of the ratio information and the recording power value information read by said reading device; and an irradiating device for irradiating the second recording layer with the laser light with the recording power set by said setting device.