| 摘要 |
An apparatus for recording/reproducing data onto/from an information recording medium (101) is provided. The apparatus (1) comprises a section for reading first data from a first predetermined position in a data recording area of the medium, a section for determining whether or not the first data matches first type information indicating a type of a first predetermined file system, a section for executing a recording or reproduction process using the first predetermined file system when matching is positive, a section for reading second data from a second predetermined position of the data recording area when matching is negative, a section for determining whether or not the second data matches second type information indicating a type of a second predetermined file system different from that of the first predetermined file system, and a section for executing a recording or reproduction process using the second predetermined file system when matching is positive.
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