Patent ID: 7729598

Claim:
A computer-readable recording medium comprising: a digital stream into which a video stream and a graphics stream are multiplexed; wherein said graphics stream includes a plurality of display sets, each of the display sets includes graphics data and state control information, the graphics data is used to compose an interactive display, and the state control information is used to cause the interactive display to change to a different state in response to a reproduction proceeding of the video stream and a user operation, each piece of state control information includes type information indicating a type of the corresponding display set, a plurality of pieces of the type information included in the graphics stream include a piece of the type information that indicates graphics data included in a display set to which the state control information belongs is identical to graphics data included in an immediately preceding display set on the graphics stream, each of the display sets is a group of functional segments, each functional segment is contained in a PES packet, and the PES packets containing the respective functional segments are converted into the sequence of transport stream packets and multiplexed with a sequence of transport packets constituting the video stream, and said graphics stream is a sequence of transport stream packets all having an identical PID.