Patent ID: 8368946

Claim:
An imaging device comprising: a first recording medium for recording a content file which is image data which has been imaged; management information storage means for storing first management information for managing the content file recorded in said first recording medium; and communication means for performing data communication with an information processing device including a second recording medium for recording a predetermined content file; wherein, in a state of being capable of data communication with said information processing device by said communication means, said imaging device is controlled so as to detect difference information relating to the storage state of the content file recorded in said first recording medium, based on the results of comparing present first management information which is first management information stored in said management information storage means, with past first management information which is first management information which has been recorded before said present first management information and which is first management information of the point-in-time at which the content file recorded in said first recording medium was saved to said second recording medium, and record, in said second recording medium, said content file recorded in said first recording medium, based on said detected difference information.