By packet speed setting device, setting is made so as to send out a cycle start packet at predetermined-times speed when image data is transferred from a DV apparatus to a DVD recorder, and by predetermined-times speed dubbing function determination device, it is determined whether or not the DV apparatus has a predetermined-times speed dubbing function when image data recorded on the DV apparatus is dubbed on the DVD recorder at predetermined-times speed. By notification device, the DV apparatus is notified to perform predetermined-times speed dubbing from the DVD recorder in the case of having the predetermined-times speed dubbing function, and by predetermined-times speed dubbing start device, predetermined-times speed dubbing is started by controlling components of the DV apparatus and the DVD recorder related to the predetermined-times speed dubbing by the notification.