Data recording and reproducing apparatus having a plurality of operating modes
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United States of America Patent
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Aug 17, 1993
Grant Date -
N/A
app pub date -
May 24, 1991
filing date -
May 24, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In data recording medium used with the apparatus of the present invention, there are allocated a sequential access zone consisting of a data area for recording real time data such as sounds or video images, a C list area for recording a C defect list managing defective sectors detected in the formatting process, and a G list area for recording a G defect list managing defective sectors detected in the recording process of data, and a random access zone consisting of a data area for recording random access data such as code data, a spare area for replacing defective sectors detected in the recording process, and an R list area for recording an R defect list managing the relation between defective sectors and corresponding spare sectors. In the recording process of data in the sequential access zone, data is recorded while defective sectors registered in the C defect list and G defect list are skipped, thereby achieving recording of both the random access data and the real time data. Moreover, sequential reproduction of real time data is realized.
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