Patent ID: 8006173
Filing Date: 2011-08-23
Classification: G11B,H04N

Abstract:
1. A recording medium comprising: a graphics stream and play list information, wherein: said play list information includes main-path information and sub-path information, said main-path information indicates a video stream as a main stream and defines a reproduction section of the main stream, said sub-path information indicates said graphics stream as a sub stream which synchronizes with said main stream, defines a reproduction section of said sub stream and includes reproduction information, said reproduction information indicates a synchronization point on a reproduction time axis of said main stream, the graphics stream which represents an interactive display including a plurality of graphical button materials, said interactive display is represented to be overlayed with a picture of said video stream in said reproduction section of said main stream, said graphics stream includes a plurality of graphics data sets each forming a group of graphics data which renders a predetermined state of said graphical button materials, and said plurality of graphics data sets respectively render different predetermined states of said graphical button materials.