Patent ID: 7620299

Claim:
A data recording/playback device comprising: image signal processing means for performing signal processing on images or sound and converting to recording data; recording playback signal processing means for converting said data to media recording data for each basic recording unit according to specification of a recording medium; memory for storing said recording data for each said basic recording unit; and recording means for recording said media recording data to said recording medium; wherein, when recording is interrupted due to an external factor in the middle of a basic recording unit, the quantity of data placed in said memory exceeds the allowable recording capacity before said external factor is eliminated while data subsequent thereto are deleted sequentially; and wherein, when said external factor is eliminated, a quantity of dummy data, substantially equivalent to the quantity of the recording data of the basic recording unit for which said recording was interrupted, are recorded consecutively from the position on said recording medium at which said recording was interrupted and then recording data of the basic recording unit remaining in memory are recorded sequentially.