Patent ID: 8369682

Claim:
A reproduction device for playing back one or more digital streams each generated by multiplexing a video stream and a graphics stream, the reproduction device comprising: a video decoder operable to decode the video stream to obtain a moving picture; and a graphics decoder operable to decode the graphics stream to obtain a graphics object to be overlaid on the moving picture, wherein the graphics stream includes status information, the graphics decoder includes a plurality of memories and a controller, and starts managing each of the plurality of memories when a digital stream is played back, and, if a graphics stream included in the digital stream is decoded, a graphics object obtained by decoding the graphics stream is stored in each of the plurality of memories, the controller performs control over reading of the graphics object stored in each of the plurality of memories and displaying of the read graphics object, when two digital streams are to be played back consecutively, a graphics object included in a preceding digital stream is stored in each of the plurality of memories, when the status information of a graphics stream included in a succeeding digital stream shows a predetermined type, the controller performs control to maintain the graphics object stored in each of the plurality of memories.