Patent ID: 8275241

Claim:
A data management device for managing a computer readable recording medium recorded with a partition table having information regarding a partition, and on which a plurality of drives are assigned using a partition description by referring to the partition table, the plurality of drives including a recording drive recorded with a basic playback unit included in a file and a management drive recorded with a property file having access information for the basic playback unit, the data management device comprising: an accessing section for accessing the basic playback unit recorded on the recording drive by referring to the property file recorded on the management drive, in which an extended partition is formed on the recording drive, in which the extended partition includes an extended partition boot record in which a first part thereof is without a bootstrap loader and immediately following the first part further includes a first plurality of tables having current partition information and a second plurality of tables having next partition information, and in which a first table of the first plurality of tables includes information on a boot flag and a start Cylinder Head Sector (CHS) address, a second table of the first plurality of tables includes information on a partition type and an end CHS address, a third table of the first plurality of tables includes information on a start Logical Block Addressing (LBA) address, and a fourth table of the first plurality of tables includes information on a partition size in LBA format.