Optical disc recording system

Abstract

An optical disc recording system includes a host apparatus configured to issue commands; and an optical disc recording apparatus configured to carry out a process corresponding to each of the commands, and to reply a response data to the command to the host apparatus. The host apparatus issues a record command as one of the commands to record a record data in an optical disc medium, and an optical disc recording apparatus records the record data in a data area in a predetermined format in response to the record command, wherein the optical disc comprises the data area and a first control data recording area. The optical disc recording apparatus additionally sets each of second control data recording areas in the data area in association with a command from the host apparatus as one of the commands, and a record status control data is recorded in the first or second control data recording area to indicate record status of the record data. At least a part of a second control data recording area associated data with at least one of the second control data recording areas is shared by the host apparatus and the optical disc recording apparatus.

1 . A recording method in an optical disc medium, comprising:
 providing an optical disc medium having a data area in a recording area of said optical disc medium;   recording a record state control data concerning a recording operation in a control data recording area of said recording area of said optical disc medium when a user data is recorded in said data area;   wherein said control data recording area comprises a first control data recording area provided in a portion of said recording area of said optical disc medium other than said data area, and second control data recording areas provided in said data area; and   additionally setting said second control data recording area for next use in said data area when a remaining record capacity of a current-use one of said second control data recording areas or said first control data recording area becomes equal to or less than a predetermined record capacity,   wherein said record state control data includes a data of said additionally set second control data recording area.   
   
   
       2 . The method according to  claim 1 , wherein said additionally setting comprises:
 additionally setting said additionally set second control data recording area in a border area, when said border area is newly set for a session in said data area.   
   
   
       3 . The method according to  claim 1 , wherein said additionally set second control data recording area contains at least one of a position data indicating a position of said additionally set second control data recording area, and a size data indicating a capacity of said additionally set second control data recording area. 
   
   
       4 . The method according to  claim 1 , wherein said record state control data is allocated with a plurality of fields, said data area is allocated with a plurality of logic tracks, and
 said recording a record state control data comprises:   recording a start address indicating a start position of each of said plurality of logical tracks, and an end address indicating a last recorded position of said logical track in one field of said plurality of fields.   
   
   
       5 . The method according to  claim 4 , wherein said recording a record state control data comprises:
 recording a data of one of said second control data recording areas corresponding to another field as one of said plurality of fields other than said one field in said another field.   
   
   
       6 . The method according to  claim 4 , wherein said recording a record state control data comprises:
 recording a data of each of said second control data recording areas in said one field in addition to said start address and said end address.   
   
   
       7 . The method according to  claim 4 , wherein each of said second control data recording areas is allocated with at least one of said plurality of logic tracks, and
 said second control data recording area data comprises a number of said second control data recording areas, and said start address and said end address of the allocated logic track.   
   
   
       8 . The method according to  claim 7 , wherein said plurality of logic tracks are allocated with track numbers to indicate an order of said plurality of logic tracks, and
 said second control data recording area data comprises a number of said second control data recording areas and said track number of said logic track allocated to said second control data recording areas.   
   
   
       9 . The method according to  claim 4 , wherein each of said plurality of fields is a sector. 
   
   
       10 . The method according to  claim 1 , wherein said optical disc medium comprises a preset record state control data replica area,
 said additionally setting comprises:   recording the latest record data control data in said record state control data replica area, when said second control data recording area is set additionally,   said latest record data control data contains said second control data recording area data.   
   
   
       11 . A data recording apparatus for an optical disc medium, comprising:
 an optical head configured to access an optical disc medium rotated and having a data area in a recording area of said optical disc medium; and   a control section configured to control said optical head to record a user data in said data area and to record a record state control data concerning a recording operation of said user data in a control data recording area of said recording area of said optical disc medium when said user data is recorded in said data area,   wherein said control data recording area comprises a basic control data recording area provided in a portion of said recording area of said optical disc medium other than said data area, and second control data recording areas provided in said data area,   said control section controls said optical head to additionally set said second control data recording area for next use in said data area when a remaining record capacity of a current-use one of said second control data recording areas or first control data recording area becomes equal to or less than a predetermined record capacity, and   said record state control data includes a data of said additionally set second control data recording area.   
   
   
       12 . The data recording apparatus according to  claim 11 , wherein said control section controls said optical head to additionally set said additionally set second control data recording area in a border area, when said border area is newly set for a session in said data area. 
   
   
       13 . The data recording apparatus according to  claim 11 , wherein said additionally set second control data recording area data contains at least one of a position data indicating a position of said additionally set second control data recording area, and a size data indicating a capacity of said additionally set second control data recording area. 
   
   
       14 . The data recording apparatus according to  claim 11 , wherein said record state control data is allocated with a plurality of fields,
 said data area is allocated with a plurality of logical tracks, and   said control section controls said optical head to record a start address indicating a start position of each of said plurality of logical tracks, and an end address indicating a last recorded position of said logical track in one field of said plurality of fields.   
   
   
       15 . The data recording apparatus according to  claim 14 , wherein said control section controls said optical head to record a data of one of said second control data recording areas corresponding to another field as one of said plurality of fields other than said one field in said another field. 
   
   
       16 . The data recording apparatus according to claim  41 , wherein said control section controls said optical head to record a data of each of said second control data recording areas in said one field in addition to said start address and said end address. 
   
   
       17 . The data recording apparatus according to claim  41 , wherein each of said second control data recording areas is allocated with at least one of said plurality of logic tracks, and
 said second control data recording area data comprises a number of said second control data recording areas, and said start address and said end address of the allocated logic track.   
   
   
       18 . The data recording apparatus according to  claim 17 , wherein said plurality of logic tracks are allocated with track numbers to indicate an order of said plurality of logic tracks, and
 said second control data recording area data comprises a number of said second control data recording areas and said track number of said logic track allocated to said second control data recording area.   
   
   
       19 . The data recording apparatus according to  claim 14 , wherein each of said plurality of fields is a sector. 
   
   
       20 . The data recording apparatus according to  claim 11 , wherein said optical disc medium comprises a preset record state control data replica area,
 said control section controls said optical head to record the latest record data control data in said record state control data replica area, when said second control data recording area is set additionally, and   said latest record data control data contains said second control data recording area data.   
   
   
       21 . A computer-readable software product recording for achieving program code for a recording method in an optical disc medium, wherein said recording method comprises:
 providing an optical disc medium having a data area in a recording area of said optical disc medium;   recording a record state control data concerning a recording operation in a control data recording area of said recording area of said optical disc medium when a user data is recorded in said data area;   wherein said control data recording area comprises a first control data recording area provided in a portion of said recording area of said optical disc medium other than said data area, and said second control data recording areas provided in said data area; and   additionally setting said second control data recording area for next use in said data area when a remaining record capacity of a current-use one of said second control data recording areas or said first control data recording area becomes equal to or less than a predetermined record capacity,   wherein said record state control data includes a data of said additionally set second control data recording area.