Patent ID: 8290063

Claim:
A moving image data reproduction device comprising: means for receiving transmission source information on moving image data from an external device; means for selecting a moving image data conversion device based on the transmission source information and receiving the moving image data that is output; means for decoding and reproducing the received moving image data; and means for receiving decoder configuration information from an external device, wherein the decoder configuration information is used as decoder configuration information for decoding the received moving image data; wherein the moving image data conversion device comprises: receiving means for receiving first moving image data; transcoding means, for use when the first moving image data is transcoded to generate second moving image data, for changing decoder configuration information, included in the first moving image data to define a condition for decoding the first moving image data, to decoder configuration information to define a condition for decoding the second moving image data followed by generating the second moving image data in such a way that the changed decoder configuration information is included in at least one predetermined position in the second moving image data; and output means for outputting the second moving image data wherein, after the decoder configuration information is passed to a decoder, the moving image data to the start of a key frame is discarded within the decoder or before arrival to the decoder.