Patent ID: 6882493

Claim:
A data recording apparatus, comprising: a recording device which includes a data recording region having data recorded in a predetermined unit, a first management data region having management data with respect to the data recorded an the data recording region, stored in the predetermined unit, and a second management data region having the same management data as that stored in the first management data region, stored in the predetermined unit; a control device which performs, in the predetermined unit, control processing including a record processing for recording data in the data recording region and an update processing for updating management data in the first management data region and the second management data region, which stores status data indicating a start of the record processing in the memory when the record processing is started, and which stores status data indicating a start of the update processing in the memory when the update processing for updating the management data in the second data management region, is started; and a memory which stores status data indicating a control processing status in the predetermined unit by the control device.