Optical disc recording device, data recording method, and data recording program

A data recording method comprising the steps of:

• dividing a recording region on an optical disc where data is managed in increments of predetermined blocks, into a predetermined number of divisions, taking a part thereof as a data region, and assigning optical recording data to be recorded onto said optical disc, to each of said divided regions of said data region;
• first recording of said optical recording data onto said optical disc;
• second recording of at least a part of said optical recording data to a recording/playing device configured having a recording capacity greater than said data region;
• calculating redundancy data for restoring said recorded data, based on the recorded data of said blocks that correspond between said divided regions in said data region, supplied based on said optical recording data played from said recording/playing device at the time of calculating said redundancy data;
• taking said divided regions other than said data region as a redundancy region, and assigning said redundancy data to said blocks of said redundancy region corresponding to said blocks in said data region;
• and third recording of said redundancy data in said optical disc.

A non-transitory computer readable storage medium having stored thereon a data recording program causing a computer to execute the steps of:

• dividing a recording region on an optical disc where data is managed in increments of predetermined blocks, into a predetermined number of divisions, taking a part thereof as a data region, and assigning optical recording data to be recorded onto said optical disc, to each of said divided regions of said data region;
• first recording of said optical recording data onto said optical disc;
• second recording of at least a part of said optical recording data to a recording/playing device configured having a recording capacity greater than said data region;
• calculating redundancy data for restoring said recorded data, based on the recorded data of said blocks that correspond between said divided regions in said data region, supplied based on said optical recording data played from said recording/playing device at the time of calculating said redundancy data;
• taking said divided regions other than said data region as a redundancy region, and assigning said redundancy data to said blocks of said redundancy region corresponding to said blocks in said data region;
• and third recording of said redundancy data in said optical disc.

A data recording method comprising the steps of:

• dividing a recording region on an optical disc where data is managed in increments of predetermined blocks, into a predetermined number of divisions, taking a part thereof as a data region, and assigning optical recording data to be recorded onto said optical disc, to each of said divided regions of said data region;
• calculating redundancy data for restoring said recorded data, based on the recorded data of said blocks that correspond between said divided regions in said data region, by playing device recording data recorded in a recording/playing device configured having a recording capacity greater than said data region, in idle time when an optical disc device and said recording/playing device are not operating, and also record said redundancy data in said recording/playing device,
• taking said divided regions other than said data region as a redundancy region, and assigning said redundancy data to said blocks of said redundancy region corresponding to said blocks in said data region;
• and
• at the time of recording said device recording data as said optical recording data, reproducing said device recording data and said redundancy data from said recording/playing device and recording to said optical disc.