Patent ID: 8027226

Claim:
An optical disc recording device comprising: an optical disc device configured to record optical recording data to be recorded onto an optical disc where data is managed in increments of predetermined blocks; a recording data assigning unit configured to divide a recording region on said optical disc into a predetermined number of divisions, take a part thereof as a data region, and assign said optical recording data to each of said divided regions of said data region; a redundancy data calculating unit configured to calculate 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; a redundancy data assigning unit configured to take said divided regions other than said data region as a redundancy region, and assign said redundancy data to said blocks of said redundancy region corresponding to said blocks in said data region; a recording/playing device configured having a recording capacity greater than said data region, to record and play data; and a recording control unit configured to record said optical recording data in said data region and also record at least a part of said optical recording data in said recording/playing device, by controlling said optical disc device and said recording/playing device, cause said recording/playing device to play said optical recording data recorded therein, at the time of calculating said redundancy data by said redundancy data calculating unit, and record said redundancy data calculated based on said played optical recording data, in said redundancy region.