| 摘要 |
In order to decrease alternate processing when a verification error is detected for an optical storage medium, a position BS and a length BL of a defect are stored when a verification error is detected, and based on this stored information, rewriting is performed with increasing the write power for the defective section. Thereby even if an LD driver with simple configuration and low price, which is used for APC control for a digital feedback loop by firmware, is used, the emission power can be increased only for the defective section, and the reproducing waveform of the defective section can be increased, and the use of alternate sectors can be decreased when writing is retried.
|
