Restorable data recording device unique data exists only one significance manner is permitted

In the memory of the memory card from the log area (1415A) and the license area (1415B) it is located. The license area (1415B) is stored corresponding to the license and valid flag of such license ID and the license key Kc to the entry number 0 to N-1. Log area (1415A) includes a transmission log and reception log (70) (80). License memory card that is the transmission source of the accepted reception state from the destination memory card, if the reception state is ON, the enable valid flag of the designated area by the entry number of the transmission log (80) . As a result, even if the way communication shift / copy license is disconnected, it can be restored license subject to movement / replication.