| 摘要 |
An information recording device comprising a recording means (352) that records recording information by applying a laser beam to an information recording medium (100) having a first recording layer (L0 layer) for recording recording information by being irradiated with a laser beam (LB) and a second recording layer (L1 layer) for recording recording information by being irradiated with a laser beam via the first recording layer, the calculating means (359) that calculates an optimum laser beam power when, by using the recording means, trial-recording trial information is recorded by irradiating the second recording layer with a laser beam via a recording-information- unrecorded recording area in the first recording layer and recording information is recorded by irradiating the second recording layer with a laser beam via a recording-information-recorded recording area in the first recording layer, and a controlling means (354) that controls the recording means so that a laser beam is applied with an optimum power when recording information is recorded to the second recording layer and the second recording layer is irradiated with a laser beam via a recording-information-recorded recording area in the first recording layer.
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