Patent ID: 7882161
Filing Date: 2011-02-01
Classification: G11B

Abstract:
1. A file management apparatus for managing content files recorded on a recording medium, based on an index file including management information about the content files, the apparatus comprising: management status information holding means for holding, in the index file, at least two management status information units indicative of a management status of the content files, the content files having been recorded in at least one directory on the recording medium, one of the at least two management status information units being a modification time checksum of the at least one directory; recording status detecting means for detecting at least two recording statuses of the content files recorded on the recording medium, one of the at least two recording statuses including modification times of the content files in the at least one directory; and inconsistency detecting means for detecting an inconsistency between the management information and a recording status of the content files based on the modification time checksum of the at least one directory held in the index file, which was read from the recording medium, and the modification times detected from a file system by the recording status detecting means and based on an other of the at least two management status information units and an other of the at least two recording statuses, wherein the other of the at least two management status information units is information indicating a number of the content files in the at least one directory, and the other of the at least two recording statuses is a total number of files in the at least one directory from the file system.