Patent ID: 7839728

Claim:
An optical disc recording device comprising: an optical disc recorder which records information on a recordable region of an optical disc; a signal output unit which outputs recording information to said optical disc recorder; a control unit which controls said optical disc recorder and said signal output unit; a record information setup unit which sets in said control unit contents of information to be recorded; and said optical disc recording device performing a process including, determining a size for a region of the recordable region of said optical disc based on the contents of information to be recorded, defining, based on the contents as set to said control unit by said information setup unit, the region of the recordable region of said optical disc which is scheduled to be used for recording as a recording-reserved region, said control unit performing steps of: setting at least a portion of the recording-reserved region as an under-investigation region, calculating an investigation/evaluation time necessary to investigate and evaluate the optical disc state in the under-investigation region and an evaluation enable time consumable for the investigation and evaluation of the optical disc, when the evaluation enable time is greater than or equal to the investigation/evaluation time, then the investigation and evaluation of the optical disc is performed and when the evaluation enable time is shorter than the investigation/evaluation time, then the investigation and evaluation of the optical disc is not performed, said optical disc recording device further performing a process including, investigating a physical state of the recording-reserved region before said optical disc recorder records the information as set to said control unit by said record information setup unit, and setting, based on an investigation result, certain recording conditions in a recording event of said optical disc recorder.