Patent ID: 7952971

Claim:
A reproduction method for an information recording disk having a volume space in which a file and a file management information for managing the file are recorded, wherein: the file recorded in the volume space is either an audio/video (AV) file or a non-AV file; defect management for the non-AV file is based on a first defect management method in which, when a defective sector is detected, an Error Correcting Code (ECC) block including the defective sector is replaced with another ECC block; defect management for the AV file is based on a second defective management method which is different from the first defective management method; the AV file is allocated to at least one recording area in the volume space such that the at least one recording area is an area of continuous sectors of at least one ECC block; the file management information includes attribute information indicating whether the file recorded in the volume space is the AV file of the non-AV file; the reproduction method comprises the steps of: determining whether the file recorded in the volume space is the AV file in accordance with the attribute information of the file management information recorded in the volume space; when it is determined that the file is the AV file, the information processing system issues Read AV command to the reproduction apparatus, reading AV data based on the second defective management method, thereby continuously reproducing the AV data; and when it is determined that the file is the non-AV file, the information processing system issues Read command to the reproduction apparatus, reading data other than the AV data based on the first defective management method.