Optical disc recording and reproducing apparatus for performing a formatting process as a background process and a method for formatting an optical disc by a background process

Abstract

An optical disc recording and reproducing apparatus can record data, which is provided in a packet having a fixed length, on an optical disc without waiting for a long time for a completion of a formatting operation. The optical disc is formatted by a formatting process performed as a background process so that another process is acceptable after a start of the formatting process. The formatting process is performed so as to fill at least a predetermined part of a recording area of said optical disc by packets having a fixed length.

1. An optical disc recording and reproducing apparatus, comprising:
 recording means for recording data on a rewritable optical disc by using a fixed packet write method; 
 reproducing means for reproducing data recorded on said optical disc by said recording means; and 
 background formatting means for formatting said optical disc by a formatting process performed as a background process so that when at least one of a recording process and a reproducing process is requested, the formatting process is interrupted and the one of the recording process and reproducing process is performed and the formatting process is resumed after the one of the recording process and the reproducing process is ended, the formatting process being performed so as to fill at least a predetermined part of a recording area of said optical disc by packets having a fixed length. 
 
     
     
       2. An optical disc recording and reproducing apparatus, comprising;
 recording means for recording data on a rewritable optical disc using a fixed packet write method; 
 reproducing means for reproducing data recorded on said optical disc by said recording means; and 
 background formatting means for formatting said optical disc by formatting process performed as a background process so that another process is acceptable after a start of the formatting process, the formatting process being performed so as to fill at least a predetermined part of a recording area of said optical disc by packets having a fixed length, 
 wherein said background formatting means includes end of process acknowledging means for notifying of completion of the formatting process before the formatting process is completed. 
 
     
     
       3. The optical disc recording and reproducing apparatus as claimed in  claim 2 , wherein said background formatting means includes means for interrupting the formatting process when a request for recording user data is made, recording the user data on said optical disc and thereafter resuming the formatting process. 
     
     
       4. The optical disc recording and reproducing apparatus as claimed in  claim 3 , wherein said background formatting means includes means for resuming the formatting process by excluding an area in which the user data has been recorded from among areas to be formatted when the packets having a fixed length are not yet recorded in the area in which the user data has been recorded. 
     
     
       5. The optical disc recording and reproducing apparatus as claimed in  claim 2 , wherein said background formatting means include means for interrupting the formatting process when a request for reproducing data recorded in a designated area is made, reproducing the data and thereafter resuming the formatting process. 
     
     
       6. The optical disc recording and reproducing apparatus as claimed in  claim 5 , wherein said background formatting means includes means for outputting previously prepared information as a result of reproduction of data recorded in said designated area when the packets having a fixed length are not yet recorded in said designated area by execution of the formatting process. 
     
     
       7. The optical disc recording and reproducing apparatus as claimed in  claim 2 , wherein said background formatting means includes means for prohibiting ejection of said optical disc when a request for ejecting said optical disc is made during an execution of the formatting process. 
     
     
       8. A formatting method for formatting a rewritable optical disc, data being recorded on said optical disc by using a fixed packet write method, said formatting method comprising the steps of:
 starting a formatting process for said optical disc as a background process, the formatting process being performed so as to fill a recording area of said optical disc by packets having a fixed length; 
 enabling execution of at least one of a recording process and a reproducing process by interrupting the formatting process and resuming the formatting process after the at least one of the recording process and the reproducing process is ended; and 
 ending the formatting process after the recording area to be formatted has been filled by the packets having the fixed length. 
 
     
     
       9. A formatting method for formatting a rewritable optical disc, data being recorded on said optical disc by using fixed packet write method, said formatting method comprising the steps of:
 starting a formatting process for said optical disc as a background process, the formatting process being performed so as to fill a recording area of said optical disc by packets having a fixed length; 
 enabling execution of another process while the formatted process is being performed; and 
 ending the formatting process after the recording are to be formatted has been filled by the packets having the fixed length, 
 wherein the step of enabling comprises the step of notifying completion of the formatting process before the formatting process is completed. 
 
     
     
       10. The formatting method as claimed in  claim 9 , further comprising the steps of:
 interrupting the formatting process when a request for recording user data is made; 
 recording the user data on said optical disc; and 
 resuming the formatting process after the user data has been recorded. 
 
     
     
       11. The formatting method as claimed in  claim 10 , wherein the step of resuming includes the step of excluding an area in which the user data has been recorded from among areas to be formatted when the packets having the fixed length are not yet recorded in the area in which the user data has been recorded. 
     
     
       12. The formatting method as claimed in  claim 9 , further comprising the steps of:
 interrupting the formatting process when a request for reproducing data recorded in a designated area is made; 
 reproducing the data in said designated area; and 
 resuming the formatting process after the data in said designated area has been reproduced. 
 
     
     
       13. The formatting method as claimed in  claim 12 , wherein the step of reproducing includes the step of outputting previously prepared information as a result of reproduction of the data recorded in said designated area when the packets having a fixed length are not yet recorded in said designated area by execution of the formatting process. 
     
     
       14. The formatting method as claimed in  claim 9 , further comprising the step of prohibiting ejection of said optical disc when a request for ejecting said optical disc is made during an execution of the formatting process. 
     
     
       15. A processor readable medium for storing program code for causing an optical disc recording and reproducing apparatus to format a rewritable optical disc, data being recorded on said optical disc by using a fixed packet write method, comprising:
 program code means for starting a formatting process for said optical disc as a background process, the formatting process being performed so as to fill a recording area of said optical disc by packets having a fixed length; 
 program code means for enabling execution of at least one of a recording process and a reproducing process by interrupting the formatting process and resuming the formatting process after the at least one of the recording process and the reproducing process is ended; and 
 program code means for ending the formatting process after the recording area to be formatted has been filled by the packets having the fixed length. 
 
     
     
       16. A processor readable medium for storing program code for causing an optical disc recording and reproducing apparatus to format a rewritable optical disc, data being recorded on said optical disc by using a fixed packet write method, comprising:
 program code means for starting a formatting process for said optical disc as a background process, the formatting process being performed so as to fill a recording area of said optical disc by packets having a fixed length; 
 program code means for enabling execution of another process while the formatting process is being performed; and 
 program code means for ending the formatting process after the recording area to be formatted has been filled by packets having a fixed length, 
 wherein the program code means for enabling comprises program code means for notifying completion of the formatting process before the formatting process has been completed. 
 
     
     
       17. The processor readable medium as claimed in  claim 16 , further comprising:
 program code means for interrupting the formatting process when a request for recording user data is made; 
 program code means for recording the user data on said optical disc; and 
 program code means for resuming the formatting process after the user data has been recorded. 
 
     
     
       18. The processor readable medium as claimed in  claim 17 , wherein the program code means for resuming includes program code means for excluding an area in which the user data has been recorded from among areas to be formatted when the packets having the fixed length are not yet recorded in the area in which the user data has been recorded. 
     
     
       19. The processor readable medium as claimed in  claim 16 , further comprising:
 program code means for interrupting the formatting process when a request for reproducing data recorded in a designated area is made; 
 program code means for reproducing the data in said designated area; and 
 program code means for resuming the formatting process after the data has been recorded in said designated area. 
 
     
     
       20. The processor readable medium as claimed in  claim 19 , wherein the program code means for reproducing includes program code means for outputting previously prepared information as a result of reproduction of the data recorded in said designated area when the packets having a fixed length are not recorded in said designated area by execution of the formatting process. 
     
     
       21. The processor readable medium as claimed in  claim 16 , further comprising program code means for prohibiting ejection of said optical disc when a request for ejecting said optical disc is made during an execution of the formatting process. 
     
     
       22. A formatting method as in claim 9, further comprising communicating information between a host computer and a disc recording and reproducing apparatus after starting a formatting operation but before starting the formatting process that is performed as a background process.  
     
     
       23. The formatting method as claimed in claim 22, further comprising the steps of:
 interrupting the formatting process when a request for recording user data is made;   recording the user data on said optical disc; and   re-starting the formatting process after the user data has been recorded.    
     
     
       24. The formatting method as claimed in claim 23, wherein the step of re-starting includes the step of excluding an area in which the user data has been recorded from among areas to be formatted when the packets having the fixed length are not yet recorded in the area in which the user data has been recorded.  
     
     
       25. The formatting method as claimed in claim 22, further comprising the steps of:
 interrupting the formatting process when a request for reproducing data recorded in a designated area is made;   reproducing the data in said designated area; and   re-starting the formatting process after the data in said designated area has been reproduced.    
     
     
       26. The formatting method as claimed in claim 25, wherein the step of reproducing includes the step of outputting previously prepared information as a result of reproduction of the data recorded in said designated area when the packets having a fixed length are not yet recorded in said designated area by execution of the formatting process.  
     
     
       27. The formatting method as claimed in claim 22, wherein the step of communicating information comprises testing whether data packet has been recorded and, depending on a result of the testing, performing other steps before starting said formatting process as a background process.  
     
     
       28. A formatting method for formatting a rewritable optical disc, data being recorded on said optical disc by using fixed packet write method, said formatting method comprising the steps of:
 starting a formatting operation comprising communicating information between a host computer and a disc recording and reproducing apparatus;   starting a formatting process for said optical disc as a background process, the formatting process being performed so as to fill a recording area of said optical disc by packets having a fixed length;   enabling execution of another process while the formatted process is being performed; and   ending the formatting process after the recording are to be formatted has been filled by the packets having the fixed length, wherein the step of enabling comprises the step of notifying completion of the formatting process before the formatting process is completed.