Patent ID: 8441902

Claim:
An optical information recording or reproducing device for recording or reproducing information on/from an optical information recording medium including a first layer and a second layer, the optical information recording or reproducing device comprising: a pickup for irradiating the optical information recording medium with a laser; a motor for rotating the optical information recording medium; a defect detector for detecting a defect from a signal read from the pickup; a memory for separately storing an address of the defect detected by the defect detector and associated defect area information identifying an area potentially affected by the detected defect; and a controller that controls the recording or reproducing of information on the optical information recording medium, wherein: when the defect is detected during recording of information in the first layer, the controller is configured to control the recording or reproducing of information such that a predefined area of the second layer corresponding to the detected defect in the first layer is registered as the associated defect area in the memory, and in response to the recording or reproducing of information failing at the detected defect address, the controller is further configured to control the recording or reproducing of information so as to change a retry operation in the area potentially affected by the detected defect.