judged whether any operating button of the operational input portion 32 has been operated or not step s 32 and when the record button rec is pushed step s 33 the recording processing is executed step s 34 when the playback button not shown is pushed step s 35 a playback processing is executed step s 36 moreover when the fast forward button not shown is pushed step s 37 a fast forward processing is executed step s 33 when the rewind button not shown is pushed step s 39 a rewind processing is executed step s 40 since these recording processing play back processing fast forward processing and rewind processing are the same as the conventional ones the details thereof are omitted here this subroutine is executed as shown in fig9 that is first it is judged whether there is a request for identification code transfer from the pc 10 or not step s 42 a when the request for identification code transfer is received by the data conversion portion for data transfer 33 from the pc 10 via the usb cable 40 due to the processing in the step s 12 the judgment in this step s 42 a becomes u201c yes u201d in this case the system control portion 25 reads out a recorder identification code including the device type name the u201c author id u201d or the like stored.