JP2005293836A5

JP2005293836A5 -

Info

Publication number: JP2005293836A5
Application number: JP2005138866A
Authority: JP
Filing date: 2005-05-11
Publication date: 2006-11-09
Anticipated expiration: 2020-07-31

Claims

  A system control apparatus for controlling a recording / reproducing unit for recording AV data on a disk or reproducing recorded AV data in an AV data recording apparatus,
  Provided in the AV data recording apparatus for storing file management information for grouping and managing extents that are consecutive blocks on the disk as files, and directory information for grouping and managing the files as directories. Refer to the memory section,
  On the disk, at least two are selected from the directory information and the file management information stored in the memory unit so as to allow duplication and include at least one of the directory information and the file management information. To the reserved area reserved as a reserved extent in the recording / playback unit,
  When newly creating a subdirectory under the directory, the directory information of the subdirectory and file management information of a file created under the hierarchy of the subdirectory are recorded in the reserved area. System control device.

A system control program for controlling a recording / reproducing unit for recording AV data on a disk or reproducing recorded AV data in an AV data recording apparatus,
  Provided in the AV data recording apparatus for storing file management information for grouping and managing extents that are consecutive blocks on the disk as files, and directory information for grouping and managing the files as directories. Referring to the memory part;
  On the disk, at least two are selected from the directory information and the file management information stored in the memory unit so as to allow duplication and include at least one of the directory information and the file management information. Recording to a reserved area reserved as a reserved extent in the recording / playback unit, and
  When newly creating a subdirectory under the directory, the directory information of the subdirectory and file management information of a file created under the hierarchy of the subdirectory are recorded in the reserved area. System control program.

A system control method for controlling a recording / reproducing unit for recording AV data on a disk or reproducing recorded AV data in an AV data recording apparatus,
  Provided in the AV data recording apparatus for storing file management information for grouping and managing extents that are consecutive blocks on the disk as files, and directory information for grouping and managing the files as directories. Referring to the memory part;
  On the disk, at least two are selected from the directory information and the file management information stored in the memory unit so as to allow duplication and include at least one of the directory information and the file management information. Recording to a reserved area reserved as a reserved extent in the recording / playback unit, and
  When newly creating a subdirectory under the directory, the directory information of the subdirectory and file management information of a file created under the hierarchy of the subdirectory are recorded in the reserved area. System control method.