To execute Running OPC based on a proper evaluation function corresponding to an optical disk.
This circuit is provided with an optical pickup section for recording/reproducing information in an optical recording medium by applying a laser beam to an optical recording medium, a control section for controlling the optical pickup section, and a storage section previously storing a plurality of evaluation functions to adjust the intensity of the laser beam according to the reflected light of the laser beam when information is recorded in the optical recording medium. The control section records a plurality of test data in trial writing areas disposed in the inner and outer peripheries of the optical recording medium while changing the intensity of the laser beam before recording information in the optical recording medium, and selects one evaluation function from the storage section based on the detection results of reflected lights in recording and reproducing the test data.
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