Write once disc allowing management of data area, method of managing the data area, and apparatus and method for reproducing data from write once disc

Abstract

A write once disc allowing management of a data area, includes a lead-in zone, a data area, and a lead-out zone. The write once disc includes a predetermined area storing area allocation information which indicates whether at least one section of the data area is allocated for disc defect management. In the disc and method, area allocation information specifying a structure of the data area is recorded on the disc, thus allowing a recording/reproducing apparatus to recognize the data area structure. Therefore, allocating areas, such as a spare area, for disc defect management other than an area for storing user data, to the data area is possible. The allocation of the areas for disc defect management to the data area enables effective use of the write once disc.

1 . A write once disc including a lead-in zone, a data area, and a lead-out zone, the disc comprising: 
 a predetermined area storing area allocation information that indicates to a recording and/or reproducing apparatus whether at least one section of the data area is allocated for disc defect management by the apparatus,    wherein the predetermined area is formed in a temporary disc defect structure (TDDS) of a temporary defect management area (TDMA), and the area allocation information recorded in the temporary disc defect structure (TDDS) is recorded in a defect management area (DMA), and the section allocated to the data area for disc defect management includes a spare area, a temporary disc defect structure (TDDS) area, a temporary defect list (TDFL) area, or the temporary defect management area (TDMA).    
   
   
       2 . A write once disc including a lead-in zone, a data area, and a lead-out zone, the disc comprising: 
 a predetermined area storing area allocation information that indicates to a recording and/or reproducing apparatus whether at least one section of the data area is allocated for disc defect management by the apparatus,    wherein the predetermined area is formed in a temporary disc defect structure (TDDS) of a temporary defect management area (TDMA), and the area allocation information recorded in the temporary disc defect structure (TDDS) is recorded in a defect management area (DMA), further comprising: 
 a space bit map (SBM) information area in which data recording area information is recorded, and  
 the data recording area information contains header information and a bitmap that indicates areas containing data.  
   
   
   
       3 . The disc of  claim 2 , wherein, when the area allocation information is recorded in a predetermined cluster of the predetermined area, a bit of the bitmap corresponding to the predetermined cluster is recorded as a predetermined value that indicates the predetermined cluster contains data.  
   
   
       4 . The disc of  claim 2 , wherein the header information comprises a finalization flag that indicates whether more data is recordable on the disc.  
   
   
       5 . The disc of  claim 1 , wherein the predetermined area in which the area allocation information is recorded is the TDDS area.  
   
   
       6 . The disc of  claim 5 , further comprising the defect management area (DMA) in which the area allocation information recorded in the TDDS area is copied when the data area does not include an area for disc defect management.  
   
   
       7 . A write once disc including a lead-in zone, a data area, and a lead-out zone, the disc comprising: 
 a predetermined area storing area allocation information that indicates to a recording and/or reproducing apparatus whether at least one section of the data area is allocated for disc defect management by the apparatus,    wherein the predetermined area is formed in a temporary disc defect structure (TDDS) of a temporary defect management area (TDMA), and the area allocation information recorded in the temporary disc defect structure (TDDS) is recorded in a defect management area (DMA), further comprising: 
 a first temporary defect management area (TDMA) formed in the lead-in zone; and  
 a second TDMA formed in the data area, and  
 the area allocation information indicates allocation of the second TDMA to the data area, and the predetermined area in which the area allocation information is recorded is one of the first and second TDMAs.  
   
   
   
       8 . The disc of  claim 7 , wherein the first TDMA is an area in which an updated temporary disc defect structure (TDDS) is recorded at least once before ejecting the disc from a recording and/or reproducing apparatus, and 
 the second TDMA is an area in which the updated TDDS is recorded in units of predetermined operations during which data is recorded.    
   
   
       9 . A write once disc including a lead-in zone, a data area, and a lead-out zone, the disc comprising: 
 a predetermined area storing area allocation information that indicates to a recording and/or reproducing apparatus whether at least one section of the data area is allocated for disc defect management by the apparatus,    wherein the predetermined area is formed in a temporary disc defect structure (TDDS) of a temporary defect management area (TDMA), and the area allocation information recorded in the temporary disc defect structure (TDDS) is recorded in a defect management area (DMA), and the area allocation information is recorded in at least one cluster of the predetermined area and updated area allocation information is recorded in at least one different cluster of the predetermined area.    
   
   
       10 . A method of managing a data area of a write once disc, comprising: 
 receiving an instruction regarding whether allocation of at least one section of the data area of the disc for disc defect management is required; and    recording area allocation information, which indicates whether the at least one section of the data area is allocated for disc defect management, in a predetermined area of the disc,    wherein the predetermined area is formed in a temporary disc defect structure (TDDS) of a temporary defect management area (TDMA), and the recording of the area allocation information comprises recording the area allocation information in a temporary disc defect structure (TDDS) area formed in at least one of a lead-in zone, the data area, and a lead-out zone of the disc.    
   
   
       11 . A method of managing a data area of a write once disc, comprising: 
 receiving an instruction regarding whether allocation of at least one section of the data area of the disc for disc defect management is required; and    recording area allocation information, which indicates whether the at least one section of the data area is allocated for disc defect management, in a predetermined area of the disc,    wherein the predetermined area is formed in a temporary disc defect structure (TDDS) of a temporary defect management area (TDMA), further comprising: 
 recording information regarding a data recordable area, and  
 the information regarding a data recordable area comprises header information and a bit map that indicates areas containing data.  
   
   
   
       12 . The method of  claim 11  wherein the recording of the information regarding the data recordable area comprises recording a bit value of the bit map corresponding to a predetermined area that contains data indicating whether the at least one section of the data area is allocated, as a predetermined value indicating an area containing data.  
   
   
       13 . The method of  claim 11 , wherein the header information comprises a finalization flag that indicates whether more data is recordable on the write once disc.  
   
   
       14 . A method of managing a data area of a write once disc, comprising: 
 receiving an instruction regarding whether allocation of at least one section of the data area of the disc for disc defect management is required; and    recording area allocation information, which indicates whether the at least one section of the data area is allocated for disc defect management, in a predetermined area of the disc, wherein the predetermined area is formed in a temporary disc defect structure (TDDS) of a temporary defect management area (TDMA),    wherein the recording of the area allocation information comprises recording information specifying a size of the at least one section of the data area, and    the recording of the area allocation information comprises recording the area allocation information to indicate the size of the at least one section as 0 when the at least one section of the data area is not allocated.    
   
   
       15 . A method of managing a data area of a write once disc, comprising: 
 receiving an instruction regarding whether allocation of at least one section of the data area of the disc for disc defect management is required; and    recording area allocation information, which indicates whether the at least one section of the data area is allocated for disc defect management, in a predetermined area of the disc,    wherein the predetermined area is formed in a temporary disc defect structure (TDDS) of a temporary defect management area (TDMA), further comprising: 
 recording the area allocation information, which is recorded in a temporary defect management area (TDMA), in a defect management area (DMA).  
   
   
   
       16 . A method of managing a data area of a write once disc, comprising: 
 receiving an instruction regarding whether allocation of at least one section of the data area of the disc for disc defect management is required; and    recording area allocation information, which indicates whether the at least one section of the data area is allocated for disc defect management, in a predetermined area of the disc,    wherein the predetermined area is formed in a temporary disc defect structure (TDDS) of a temporary defect management area (TDMA), and the at least one section of the data area comprises a spare area, a temporary disc defect structure (TDDS) area, a temporary defect list (TDFL) area, and the temporary defect management area (TDMA).    
   
   
       17 . A method of managing a data area of a write once disc, comprising: 
 receiving an instruction regarding whether allocation of at least one section of the data area of the disc for disc defect management is required; and    recording area allocation information, which indicates whether the at least one section of the data area is allocated for disc defect management, in a predetermined area of the disc,    wherein the predetermined area is formed in a temporary disc defect structure (TDDS) of a temporary defect management area (TDMA), and    the recording the area allocation information comprises recording the area allocation information, which indicates allocation of a second temporary defect management area (TDMA) to the data area, in one of a first TDMA and the second TDMA which are formed in a lead-in zone of the disc.    
   
   
       18 . The method of  claim 17 , wherein the first TDMA is an area in which an updated temporary disc defect structure (TDDS) is recorded before ejecting the write once disc from a recording and/or reproducing apparatus, and 
 the second TDMA is an area in which the updated TDDS is recorded in units of predetermined operations during which data is recorded.    
   
   
       19 . A method of managing a data area of a write once disc, comprising: 
 receiving an instruction regarding whether allocation of at least one section of the data area of the disc for disc defect management is required; and    recording area allocation information, which indicates whether the at least one section of the data area is allocated for disc defect management, in a predetermined area of the disc,    wherein the predetermined area is formed in a temporary disc defect structure (TDDS) of a temporary defect management area (TDMA), further comprising: 
 updating the area allocation information by recording area allocation information, which specifies a change in a size of the at least one section, in a predetermined area in response to a command that instructs the size of the at least one section to be changed.  
   
   
   
       20 . The method of  claim 10 , wherein during the recording the area allocation information, the area allocation information is recorded in at least one cluster starting from a start of the TDDS.  
   
   
       21 . A method of reproducing data from a write once disc, comprising: 
 accessing a predetermined area of the disc to read area allocation information that indicates whether at least one section of a data area is allocated for disc defect management; and    obtaining the area allocation information, wherein the predetermined area is formed in a temporary disc defect structure (TDDS) of a temporary defect management area (TDMA), and the area allocation information recorded in the temporary disc defect structure (TDDS) is recorded in a defect management area (DMA),    wherein the predetermined area storing the area allocation information is a temporary disc defect structure (TDDS) area formed in a lead-in zone, the data area, or a lead-out zone of the disc.    
   
   
       22 . A method of reproducing data from a write once disc, comprising: 
 accessing a predetermined area of the disc to read area allocation information that indicates whether at least one section of a data area is allocated for disc defect management; and    obtaining the area allocation information,    wherein the predetermined area is formed in a temporary disc defect structure (TDDS) of a temporary defect management area (TDMA), and the area allocation information recorded in the temporary disc defect structure (TDDS) is recorded in a defect management area (DMA), and the at least one section comprises a spare area, a temporary disc defect structure (TDDS) area, a temporary defect list (TDFL) area, or the temporary defect management area (TDMA).    
   
   
       23 . A method of reproducing data from a write once disc, comprising: 
 accessing a predetermined area of the disc to read area allocation information that indicates whether at least one section of a data area is allocated for disc defect management; and    obtaining the area allocation information,    wherein the predetermined area is formed in a temporary disc defect structure (TDDS) of a temporary defect management area (TDMA), and the area allocation information recorded in the temporary disc defect structure (TDDS) is recorded in a defect management area (DMA), and the section allocated to the data area for disc defect management includes a spare area, a temporary disc defect structure (TDDS) area, a temporary defect list (TDFL) area, or the temporary defect management area (TDMA).    
   
   
       24 . A method of reproducing data from a write once disc, comprising: 
 accessing a predetermined area of the disc to read area allocation information that indicates whether at least one section of a data area is allocated for disc defect management; and    obtaining the area allocation information,    wherein the predetermined area is formed in a temporary disc defect structure (TDDS) of a temporary defect management area (TDMA), and the area allocation information recorded in the temporary disc defect structure (TDDS) is recorded in a defect management area (DMA), and    the disc further comprises a first temporary defect management area (TDMA) formed in the lead-in zone and a second TDMA formed in the data area,    the area allocation information indicates allocation of the second TDMA to the data area, and    the predetermined area in which the area allocation information is recorded is one of the first and second TDMAs.    
   
   
       25 . A write once disc comprising at least one recording layer, the at least one layer comprising: 
 a data area comprising a user data area in which a user data is recorded; and    a lead-in area comprising a first temporary disc management area and a defect management area,    wherein the first temporary disc management area comprises a first temporary disc defect structure including a first information which indicates to a recording and/or reproducing apparatus whether at least one section of the data area is allocated for defect management and a second information which specifies to a recording and/or reproducing apparatus a size of a second temporary disc management area allocated in the data area, and    a copy of the first information of the first temporary disc defect structure is recorded in the defect management area of the lead-in area, and is used by the recording and/or reproducing apparatus to manage the user data in the data area.    
   
   
       26 . The disc of  claim 25 , wherein the first information comprises size information specifying a size of the at least one section allocated in the data area.  
   
   
       27 . The disc of  claim 25 , wherein the at least one section allocated to the data area for defect management comprises a spare area.  
   
   
       28 . The disc of  claim 27 , wherein the first information comprises size information specifying a size of the at least one section allocated in the data area.