Electronic still camera utilizing updatable frame catena information to maintain frame sequence

A method of administering data in an electronic still camera, comprising:

• designating a frame of image data in a memory which records image data in a plurality of frames and which records, association with each frame, frame catena data identifying a next frame, if any, in one of a forward or backward time sequence of use of used frames in said memory;
• and
• updating the frame catena data of a used frame, if any, immediately preceding the designated frame in sequence, by changing the frame catena data of said preceding frame to the frame catena data of the designated frame.

An electronic still camera, comprising:

• a designation device for designating, according to the choice of a user, a frame of image data in a memory which records image data in a plurality of frames and which records, in association with each frame, frame catena data identifying a next an frame, if any, in one of a forward or backward time sequence of use of used frames in said memory;
• and
• an updating device for updating the frame catena data associated with a used frame, if any, immediately preceding the designated frame in sequence, by changing the frame catena data of said preceding frame to the frame catena data of the designated frame.

An electronic still camera, comprising:

• a recording device for recording, in a memory, frames of image data and frame catena data in association with each frame of image data, said frame catena data identifying a next frame, if any, in one of a forward or backward time sequence of use of the frames.