An image capturing device generates a picture handle for designating a picture file and transmits the picture handle to a picture display device. When an alias corresponding to the picture handle is recorded in a file in a storage medium, the image capturing device transmits the alias. The picture display device displays the received picture handle. By using the picture display device, a user selects a picture handle included in a list and inputs an alias corresponding to the selected picture handle. The input alias is transmitted from the picture display device and is recorded in a file in a storage medium loaded into the image capturing device.