STORAGE DEVICE

A storage device includes: a connecting terminal that communicates data with a another device; a first storing device that is able to store a still image file received from the another device via the connecting terminal; a second storing device that stores a synthetic data file used when synthesizing a predetermined information to a still image; and a control device that executes data process. The data process is a process in which a synthesized still image file is created that is able to identify a still image, in which the predetermined information based upon the synthetic data file stored in the second storing device is synthesized to a portion of the still image displayed by the still image file, and the synthesized still image file is stored in the first storing device, when the still image file is stored in the first storing device.