| 摘要 |
Performing sequential recording to alternate destinations of an information recording medium and improving access performance of accessing the information recording medium are achieved by estimating sequential defective areas of the information recording medium based on prescribed conditions, allocating blocks of a spare area as alternate destinations of the defective areas, and performing alternate recording to the allocated alternate destinations, in response to a recording request to record information to the sequential defective areas. The above can be achieved because the use of the alternate destinations will help to prevent a time-out from occurring due to he the defective areas.
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