To record image data with a keyword added thereto to a memory card.

A memory card 1 loaded removably to a digital camera is provided with a liquid crystal display device 2, a key pad 3, a memory to store a keyword entered from the key pad 3 and a memory that stores image data given from the digital camera. The keypad 3 is used to enter the keyword, and stored in advance in a built-in memory. The digital camera is used to photograph an object corresponding to the keyword and the memory stores the obtained image data in cross-reference with the keyword. The image data can be retrieved by using the keyword.