Patent ID: 6594725
Filing Date: 2003-07-15
Classification: G11B

Abstract:
An information recording method for recording information on an information storage medium having a lead-in area, a data area divided into a plurality of zones and configured to record an AV file for storing audio data or video data, a lead-out area, guard areas provided between the plurality of zones and to which sector numbers are assigned, defective area management information having information about a defective area in the information storage medium and recorded in at least one of the lead-in area and the lead-out area, file management information for managing at least the AV file and for including file entry information, and a contiguous data area (CDA), wherein the file entry information includes an allocation descriptor of at least one extent for data allocation, and the contiguous data area is set as a unit for data allocation and permits skipping to be performed, the information recording method comprising:searching for an unrecorded area in the information storage medium; referring to the defective area management information for information about the defective area in the information storage medium; referring to information on a zone boundary position in the information storage medium; setting an area to be recorded in the unrecorded area, based on the contiguous data area having the defective area; setting an extent portion in an area to be recorded so as to avoid the defective area; recording AV data in the extent portion of the AV file, wherein the AV file includes a file body and a file tail, the file body includes a plurality of extents that together continuously store the audio data or the video data, and the file tail includes an unrecorded area allocated in the AV file; and recording the file management information including the file entry information, the file entry information having information on an information length that indicates a sum of sizes of the extents in the file body, wherein the file entry information further includes information on an information length of the audio data or the video data in the AV file and Information Control Block(ICB) Tag information, and the ICB Tag information includes information related to a file type.