Patent ID: 7634739
Filing Date: 2009-12-15
Classification: G11B

Abstract:
1. A recording medium having recorded thereon a video stream and a graphics stream, wherein: the graphics stream and the video stream are multiplexed and integrated into a digital stream; the graphics stream (i) constitutes a menu to be overlaid with a moving picture obtained by decoding the video stream and (ii) includes one or more interactive control segment and an object definition segment defining a graphics object; the interactive control segment includes a plurality of pieces of multi-page information and time information; the time information includes a presentation time stamp, a selection timeout stamp, and a user timeout duration all of which are associated with a playback timeline of the video stream; the presentation timestamp indicates a timing for displaying, as a current page, a first page of the menu; the plurality of pieces of multi-page information include one or more pieces of button information; the button information indicates information used to present a state of button material as a graphic object and to provide an interactive display composition on the page; the button information includes a set-button-page command that instructs a playback apparatus to set, as a new current page, a page other than the current page when a state of a corresponding button material is changed to an activated state; the selection timeout stamp indicates a timing for automatically activating a button material presented on the current page to cause the playback apparatus to execute the set-button-page command; and the user timeout duration indicates a timing for resetting the current page to the first page so as to display the first page only.