Reproducing apparatus

A playback device for performing a playback process, based on a file recorded on one of (i) a first recording medium having a first file system format and (ii) a second recording medium having a second file system format, the playback device comprising:

• a search unit operable to, when an application requests to access a second recording medium with use of a file path in the first file system format, search for an accessible file on the second recording medium based on reference information;
• and
• a read unit operable to, (i) if the accessible file is found by the search, read the accessible file from the second recording medium, and (ii) if the accessible file is not found by the search, read a file from the first recording medium, wherein
• the reference information has been recorded on the second recording medium, and indicates a file path in the second file system format that corresponds to the file path in the first file system format,
• management information on the first recording medium includes a plurality of identifiers for identifying the first recording medium,
• the second recording medium is a removable medium, and
• the file path in the second file system format indicated by the reference information includes parts of one of the identifiers, the parts being used to specify the accessible file and obtained by dividing the one of the identifiers into parts that each have a length complying with the second file system format.

A system LSI for performing a playback process, based on a file recorded on one of (i) a first recording medium having a first file system format and (ii) a second recording medium having a second file system format, the system LSI comprising:

• a search unit operable to, when an application requests to access a second recording medium with use of a file path in the first file system format, search for an accessible file on the second recording medium based on reference information;
• and
• a read unit operable to, (i) if the accessible file is found by the search, read the accessible file from the second recording medium, and (ii) if the accessible file is not found by the search, read a file from the first recording medium, wherein
• the reference information has been recorded on the second recording medium, and indicates a file path in the second file system format that corresponds to the file path in the first file system format,
• the file path in the first file system format includes a plurality of identifiers for identifying the first recording medium,
• the second recording medium is a removable medium, and
• the file path in the second file system format indicated by the reference information includes parts of one of the identifiers, the parts being used to specify the accessible file and obtained by dividing the one of the identifiers into parts that each have a length complying with the second file system format.

A playback method that causes a computer to perform a playback process, based on a file recorded on one of (i) a first recording medium having a first file system format and (ii) a second recording medium having a second file system format, the playback method comprising the steps of:

• when an application requests to access a second recording medium with use of a file path in the first file system format, searching for an accessible file on the second recording medium based on reference information;
• and
• (i) if the accessible file is found by the search, reading the accessible file from the second recording medium, and (ii) if the accessible file is not found by the search, reading a file from the first recording medium, wherein
• the reference information has been recorded on the second recording medium, and indicates a file path in the second file system format that corresponds to the file path in the first file system format,
• the file path in the first file system format includes a plurality of identifiers for identifying the first recording medium,
• the second recording medium is a removable medium, and
• the file path in the second file system format indicated by the reference information includes parts of one of the identifiers, the parts being used to specify the accessible file and obtained by dividing the one of the identifiers into parts that each have a length complying with the second file system format.