Patent ID: 6351447
Filing Date: 2002-02-26
Classification: G11B

Abstract:
A reproducing apparatus for reproducing data from a disc-shaped recording medium having a plurality of sectors, said disc-shaped recording medium having a first recording area including data sectors for recording error detection and correction coded data aligned in both row and column directions and segmented into a plurality of segment coded data, and substitution recording sectors for recording data recorded to a defective sector in the first recording area by skipping only the defective sector and records said segment coded data in and after the defective sector in following sectors by successively slipping one by one sector, and having a lead-in area and a lead-out area both including a defect list for recording defective sector addresses,said reproducing apparatus comprising: address detecting means for detecting a target sector address corresponding to a defective sector by reproducing the defective list; reproduction control means for controlling a reproduction of the data to sequentially access the sectors based on the sector address detected by said address detecting means to thereby reproduce the recorded data; and decoding means for decoding the reproduced data of the segmented coded data to conduct error detection and correction, wherein, in the case where said sector is determined to be a defective sector, said reproduction control means skips only the defective sector and reproduces said segment coded data in and after the defective sector in the following sectors by successively slipping one by one sector.