| 摘要 |
An optical disc system includes an optical disc which is formatted to store data in sectors. A tracking error signal is monitored and if the tracking error signal exceeds a predetermined threshold level, the address information of a next sector following a target sector in which data is to be recorded or from which data is to be read out is read out. And, if the address information thus read out has been found to indicate an address which is consecutive to the address of the target sector, the occurrence of a tracking error is determined. On the other hand, if the address information thus read out has been found to indicate an address which is not consecutive to the address of the target sector, then the writing (recording) operation is terminated so as to prevent overwriting of data in an undesired sector.
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