CONTENT TRANSMISSION DEVICE, CONTENT PLAYBACK DEVICE, CONTENT DISTRIBUTION SYSTEM, METHOD FOR CONTROLLING CONTENT TRANSMISSION DEVICE, METHOD FOR CONTROLLING CONTENT PLAYBACK DEVICE, CONTROL PROGRAM, AND RECORDING MEDIUM

摘要

A content transmission unit (22) is provided that performs chunk transfer of a segment to a client (2) in subsegment unit, the subsegment being formed by dividing the segment into a plurality of pieces after receiving a request requiring transmission of the segment from the client (2).