| http://www.w3.org/ns/prov#value | - Accordingly, an updated file system must be written in an area other than the area where an old file system has already been recorded. [0008] Since a conventional data recording and/or reproducing apparatus is designed to read out a file system from only a fixed area of an information storage medium, the conventional system cannot read out a file system from write-once information storage media, i
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