Peer-to-peer-type content distribution system and content reproduction terminal device for use therein

摘要

If a peer 20 fails in an event notification (NO in S214), the peer 20 immediately stops the reproduction of a content item even when the content item is being reproduced (S221), and prohibits the reproduction of the content item (S222). After a retry interval time elapses since the prohibition of content reproduction (YES in S223), the event notification operation resumes (S213). If the event notification then succeeds (YES in S214), the prohibition of content reproduction is removed (S227). When a network failure occurs, content reproduction is not prohibited immediately after the occurrence of the network failure, but it is rather prohibited after a predetermined grace period elapses since the failure time (YES in S218).