To provide a transition method to a shipment mode of an information processing device including an information storage device for surely performing transition to the shipment mode and to provide the information processing device changed to the shipment mode by this method.

An RFID tag 17 is installed inside a navigation unit 1, while an RFID tag writer 3 is installed in the vicinity of a shipment bench. Based on shipment process data received from the RFID tag writer 3 by the RFID tag 17, a controller 14 recognizes that the navigation unit 1 is in a shipment process. When disconnection of the navigation unit 1 from an external power supply device 2 is detected before finishing transition to the shipment mode while it is recognized that the navigation unit 1 is in the shipment process, the controller 14 makes a DVD deck 12 and a DVD/CD changer 13 change to the shipment mode by using an internal power supply part 15.