DATA RECORDER, DATA RECORDING METHOD, PROGRAM FOR IMPLEMENTING THE METHOD AND PROGRAM RECORDING MEDIUM

摘要

PROBLEM TO BE SOLVED: To provide a data recorder for reading out data at a next access time even when the recording of cluster data and a file index is interrupted since a trouble such as power source cutoff is caused in data renewing.

SOLUTION: A cluster data processing part 14 records the renewing cluster data on an empty cluster by retrieving the cluster area 112 of a recording medium 11. A preliminary file index processing part 16 newly makes a preliminary file index on the recorded cluster data in an index area 111 of the recording medium 11. Afterwards, a normal use file index processing part 15 renews the content of an existing normal use file index corresponding to the renewed data to the content of the preliminary file index. Afterwards, a preliminary file index processing part 16 erases the preliminary file index from the index area 111.

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