Abstract: A method is provided which comprises a first processing step that demultiplexes each of a left-eye video image file and a right-eye video image file which were recorded with time synchronization and in accordance with MPEG4-AVC standard, and a second processing step that multiplexes the demultiplexed data of the left-eye video image file and the right-eye video image file into one elementary stream data at least without encoding and in accordance with MPEG4-MVC standard, wherein the demultiplexing is performed so that image data and audio data from one of the left-eye video image file and the right-eye video image file, demultiplexed in the first processing step, are used as base views of the elementary stream data and image data from the other is used as dependent views of the elementary stream data.

Abstract: Disclosed is a distribution system of contents, comprising a distribution server 4 stored with a content having a management file and a plurality of stream files with different data amounts and a player apparatus 1 for downloading the content via a communication line 5 and starting playback of the content during the downloading. The player apparatus comprises a detector unit 16 for detecting a transmission speed through the communication line, a selector unit 17 for selecting a stream file with a data amount depending on the transmission speed from the plurality of stream files with different data amounts, a stream file memory unit 14 for downloading and temporally memorizing the selected stream file, and a volume adjuster unit 15 for adding a padding data such that the data amount of the stream file becomes equal to a data amount specified in the management file when the data amount of the stream file is different from the data amount specified in the management file.