To actualize special reproduction such as fast forwarding and rewinding reproduction of a compressed and encoded dynamic image without increasing the storage capacity.

A video server part 50 has a reformat part 11, and the appearance intervals of intra images present in an AV stream from an encoder part 19 are standardized in the AV stream. A terminal part 30 has a title information management part 38 and the address and the length of data to be read out of the video server 50 when the terminal part 30 is actuated can be determined to enabling reproduction from an arbitrary position of the AV stream, without increasing the storage capacity.