Optical recording medium, recording/reproducing apparatus and recording/reproducing method

Abstract

An optical recording medium including a user data area and an SA/DL area in which a replacement block to replace a defective block in the user data area, and information regarding a defect corresponding to the defective block, is recorded, wherein the information regardin the defect includes a consecutive defect list entry including information regarding defects located in consecutive locations of the user data area, and an apparatus, and a method of, using the optical recording medium.

1 . An optical recording medium comprising: 
 a user data area; and    an SA/DL area in which a replacement block to replace a defective block located in the user data area, and information regarding a defect corresponding to the defective block, is recorded;    wherein the information regarding the defect comprises a consecutive defect list entry including information regarding defects located in consecutive locations of the user data area.    
   
   
       2 . The medium of  claim 1 , wherein the consecutive defect list entry comprises: 
 a start entry corresponding to information regarding a first defective block; and    an end entry corresponding to information regarding a last defective block;    wherein the first and last defective blocks are among defective blocks in the consecutive locations of the user data area.    
   
   
       3 . The medium of  claim 2 , wherein the start entry includes location information regarding the first defective block, and location information regarding a replacement block replacing the first defective block.  
   
   
       4 . The medium of  claim 2 , wherein the end entry includes location information regarding the last defective block, and location information regarding a replacement block replacing the last defective block.  
   
   
       5 . The medium of  claim 1 , wherein the information regarding the defect further comprises information regarding a number of the consecutive defect list entries.  
   
   
       6 . The medium of  claim 5 , wherein the information regarding the defect further comprises information regarding a number of defect list entries.  
   
   
       7 . The medium of  claim 6 , wherein a number of single defect list entries is calculated by multiplying the number of consecutive defect list entries by a factor of two, and subtracting a resulting product from the number of defect list entries.  
   
   
       8 . The medium of  claim 1 , wherein the information regarding the defect further comprises: 
 a defect list entry comprising: 
 location information regarding the defective block,  
 location information regarding the replacement block, and  
 state information regarding the defect.  
   
   
   
       9 . The medium of  claim 8 , wherein the state information comprises replacement state information representing whether the defective block is replaced, and consecutive defect information representing whether the defective block is a consecutive defective block.  
   
   
       10 . The medium of  claim 8 , wherein the information regarding the defect further comprises information regarding a number of consecutive defect list entries having replacement state information representing that the defective block is replaced.  
   
   
       11 . The medium of  claim 10 , wherein the information regarding the defect further comprises information regarding a number of consecutive defect list entries having replacement state information representing that the defective block is not replaced.  
   
   
       12 . An apparatus to record and/or reproduce data on/from an optical recording medium, the apparatus comprising: 
 a writing/reading unit to write the data on the medium and/or read the data from the medium; and    a controlling unit;    wherein the controlling unit assigns to the medium an SA/DL area, in which a replacement block, which replaces a defective block having a defect in a user data area, and information regarding the defect is recorded; and    controls the writing/reading unit to record the information regarding the defect, which comprises consecutive defect list entries corresponding to information regarding defects located in consecutive locations of the user data area, in the SA/DL area.    
   
   
       13 . The apparatus of  claim 12 , wherein the consecutive defect list entries comprise a start entry corresponding to information regarding a first defective block among defective blocks in the consecutive locations, and an end entry corresponding to information regarding a last defective block among the defective blocks in the consecutive locations.  
   
   
       14 . The apparatus of  claim 13 , wherein the controlling unit generates the start entry including location information regarding the first defective block and location information regarding a replacement block replacing the first defective block.  
   
   
       15 . The apparatus of  claim 14 , wherein the controlling unit generates the end entry including location information regarding the last defective block and location information regarding a replacement block replacing the last defective block.  
   
   
       16 . The apparatus of  claim 12 , wherein the controlling unit generates information regarding a number of the consecutive defect list entries and information regarding a number of defect list entries into information on the defect; and 
 the number of single defect list entries is calculated by multiplying the number of consecutive defect list entries by a factor of two, and subtracting a resulting product from the number of defect list entries.    
   
   
       17 . A method of recording/reproducing data on an optical recording medium, the method comprising: 
 assigning to the medium an SA/DL area, in which a replacement block to replace a defective block in a user data area, and information regarding a defect corresponding to the defective block, is recorded; and    recording information regarding the defect, which comprises consecutive defect list entries corresponding to information regarding defects located in consecutive locations of the user data area, in the SA/DL area.    
   
   
       18 . The method of  claim 17 , further comprising making the consecutive defect list entries comprise a start entry corresponding to a first defective block among defective blocks in the consecutive locations, and an end entry corresponding to a last defective block among the defective blocks in the consecutive locations.  
   
   
       19 . The method of  claim 18 , further comprising generating the start entry including location information regarding the first defective block and location information regarding a replacement block replacing the first defective block.  
   
   
       20 . The method of  claim 18 , further comprising generating the end entry including location information regarding the last defective block and location information regarding a replacement block replacing the last defective block.  
   
   
       21 . The method of  claim 17 , further comprising: 
 including information regarding a number of the consecutive defect list entries and information regarding a number of defect list entries in the information regarding the defect; and    calculating a number of single defect list entries by multiplying the number of consecutive defect list entries by a factor of two, and subtracting a resulting product from the number of defect list entries.    
   
   
       22 . A computer-readable recording medium storing a program to control an apparatus to perform a defect management method of recording/reproducing data on an optical disc on which defects are managed, the defect management method including: 
 assigning to the medium an SA/DL area, in which a replacement block to replace a defective block having a defect in a user data area, and information regarding the defect corresponding to the defective block is recorded; and    recording information regarding the defect, which comprises consecutive defect list entries corresponding to information regarding defects located in consecutive locations of the user data area, in the SA/DL area.    
   
   
       23 . An optical recording medium comprising: 
 a plurality of replacement blocks respectively replacing corresponding defective blocks in the optical recording medium; and    a consecutive defect list entry comprising information regarding the defective blocks located in consecutive locations of the medium.    
   
   
       24 . The optical recording medium of  claim 23 , further comprising information regarding start and end entries respectively corresponding to first and last defective blocks among the defective blocks in the consecutive locations of the medium.  
   
   
       25 . The optical recording medium of  claim 24 , wherein the start entry comprises information regarding the first defective block, and location information regarding a replacement block replacing the first defective block.  
   
   
       26 . The optical recording medium of  claim 24 , wherein the end entry comprises information regarding the last defective block, and location information regarding a replacement block replacing the last defective block.  
   
   
       27 . The optical recording medium of  claim 23 , further comprising information regarding a number of the defective blocks in the consecutive locations of the medium.  
   
   
       28 . The optical recording medium of  claim 23 , wherein the consecutive defect list entry comprises location information of only first and last defective blocks among the defective blocks in the consecutive locations of the medium.  
   
   
       29 . A method of recording/reproducing data on an optical recording medium, the method comprising: 
 recording replacement blocks corresponding to defective blocks in the medium; and    recording a defective list entry comprising information regarding the defective blocks located in consecutive locations of the medium.    
   
   
       30 . A method of recording/reproducing data on an optical recording medium, the method comprising: 
 detecting consecutive defective blocks on the medium; and    generating a consecutive defect list entry comprising start and end entries respectively corresponding to first and last defective blocks among consecutive defective blocks.    
   
   
       31 . The method of  claim 30 , wherein the consecutive defect list entry comprises location information only for the start and end entries of the respective first and last defective blocks among the consecutive defective blocks.  
   
   
       32 . A method of recording/reproducing data on an optical recording medium, the method comprising: 
 generating a defect list entry comprising information regarding a defect in a one or more defective blocks, whether the defective blocks are located in consecutive locations of the medium, and whether the defective blocks have been replaced by replacement blocks.    
   
   
       33 . The method of  claim 32 , wherein the defect list entry comprises a 3-bit binary number.  
   
   
       34 . The method of  claim 33 , wherein the 3-bit binary number indicates whether one of the one or more defective blocks has been replaced, whether the one of the one or more defective blocks is among consecutive defective blocks, and whether the one of the one or more defective blocks is a first or last defective block among consecutive defective blocks.