Recording defect substitution method of a disc-shaped recording medium, and a recording and reproducing apparatus for a disc-shaped recording medium

Abstract

In a recording and reproducing apparatus for a disc-shaped recording medium, and a defect substitution method for a disc-shaped recording medium ( 8 ), whether reproduction of recorded data is good is determined by sector unit and not by product code unit, defective sector discrimination is performed by sector unit, and only sectors determined defective are alternately recorded, when using a recording format in which data that is error detection and correction coded with a product code is segmented and recorded to a plurality of sectors.

1. A disc-shaped recording medium recording apparatus for recording data in a disc-shaped recording medium having a plurality of sectors, said disc-shaped recording medium recording apparatus comprising:
 a coding means for coding the data into error detection and correction coded data aligned in both row and column directions, and segmenting said error detection and correction coded data into a plurality of segment coded data;  
 means for recording each of said plurality of segment coded data to a sector in a first recording area (ADS) of the disc-shaped recording medium; and  
 defective sector discrimination means for determining whether a sector is a defective sector by reproducing said  segment coded data recorded in said sector, such that a defective sector is detected by decoding only  the error detection and correction coded data within said  the segment coded data recorded in said sector; and  
 defective sector substitution means, which, in the case where said sector is determined to be a defective sector, skips only the defective sector and records said segment coded data in and after the defective sector in the following sectors by successively slipping one by one sector.  
 
     
     
       2. A disc-shaped recording medium recording method for recording data in a disc-shaped recording medium having a plurality of recording sectors, said disc-shaped recording medium recording method comprising:
 coding the data into error detection and correction coded data aligned in both row and column directions;  
 segmenting said error detection and correction coded data into a plurality of segment coded data;  
 recording each of said plurality of segment coded data to a sector in a first recording area (ADS) of the disc-shaped recording medium; and  
 determining whether a sector is a defective sector by reproducing said  segment coded data recorded in said sector, such that a defective sector is detected by decoding only  the error detection and correction coded data within said  segment coded data recorded in said sector; and  
 in the case where said sector is determined to be a defective sector, skipping only the defective sector and recording said segment coded data in and after the defective sector in the following sectors by successively slipping one by one sector.  
 
     
     
       3. The disc-shaped recording medium recording apparatus according to  claim 1 , wherein the defective sector discrimination means determines a sector to be a defective sector when data recorded to said sector cannot be correctly reproduced. 
     
     
       4. A disc- shaped recording medium recording apparatus for recording data in a disc - shaped recording medium having a plurality of sectors, said disc - shaped recording medium recording apparatus comprising:      a coding means for coding the data into error detection and correction coded data aligned in both row and column directions, and segmenting said error detection and correction coded data into a plurality of segment coded data;        means for recording each of said plurality of segment coded data to a sector in a first recording area  ( ADS )  of the disc - shaped recording medium;        defective sector discrimination means for determining whether a sector is a defective sector by using a defect list which has been prepared by reproducing segment coded data recorded in said sector, such that a defective sector is detected by decoding the error detection and correction coded data within segment coded data recorded in said sector; and        defective sector substitution means, which, in the case where said sector is determined to be a defective sector, skips only the defective sector and records said segment coded data in and after the defective sector in the following sectors by successively slipping one by one sector.     
     
     
       5. A disc- shaped recording medium recording method for recording data in a disc - shaped recording medium having a plurality of recording sectors, said disc - shaped recording medium recording method comprising:      coding the data into error detection and correction coded data aligned in both row and column directions;        segmenting said error detection and correction coded data into a plurality of segment coded data;        recording each of said plurality of segment coded data to a sector in a first recording area  ( ADS )  of the disc - shaped recording medium;        determining whether a sector is a defective sector by using a defect list which has been prepared by reproducing segment coded data recorded in said sector, such that a defective sector is detected by decoding the error detection and correction coded data within segment coded data recorded in said sector; and        in the case where said sector is determined to be a defective sector, skipping only the defective sector and recording said segment coded data in and after the defective sector in the following sectors by successively slipping one by one sector.