| 摘要 |
When a main controller in an optical disc device for recording information on a rewritable optical disc having power calibration area (PCA) receives a signal from a disc detection sensor indicating the presence of optical disc, the main controller allows an optical pickup to seek to the PCA, and detects whether the PCA has free space remaining for optimum recording power control (OPC) to be performed 5 times. If it does not remain, the optical pickup subsequently erases all data recorded by trial recording in the PCA to create free space, while if it remains, the optical pickup does not perform the erasing operation. Then, the main controller along with the optical pickup performs OPC using the free space in the PCA. This makes it possible to minimize total time for OPC during the recording, and prevent occurrence of partial drop-out of recording (image cut-off) on the optical disc.
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