Mobile terminal, contents delivery system, and contents reproduction program

摘要

Low bit rate contents data as pre-data corresponding to a series of stream data are preliminarily stored in a mobile phone. In order to reproduce certain contents, a transmission request of a high bit rate contents data block having the same contents as those of the low bit rate contents data block is transmitted to the delivery source indicated by the transfer source information added to the pre-data upon reproduction thereof. If the high bit rate contents data block is received from the delivery source, the high bit rate contents data block is reproduced. Meanwhile, if the high bit rate contents data block is unreceived from the delivery source, the low bit rate contents data block having the same contents as those of the high bit rate contents data block is detected from the pre-data so as to be reproduced in place thereof.