Patent ID: 7936976

Claim:
A machine readable information storage medium for access by an information playback system, the information storage medium embodied as an optical disc comprising: a first area in which a video object is recorded; and a second area in which control information is recorded, the control information including first program chain information and second program chain information, the first program chain information relating to a first program chain, the second program chain information relating to a second program chain, cells being specified by the control information, the first program chain specifying a first playback sequence of one part of the cells, the second program chain specifying a second playback sequence of another part of the cells, a first cell of the one part of cells referring to a first region of the video object, a second cell of the another part of cells referring to a second region of the video object, a part of the first region being able to overlap with the second region to enable playback of the part of the first region, another part of the first region being able not to include the second region, one of the cells relating to Main video or Sub video, the Main video or the Sub video being able to be used in a multi video simultaneous playback, the control information including information indicating if an information playback relates to the multi video simultaneous playback, the first program chain information including information which relates to a total number of the one part of cells, the control information including information which indicates a recording location, the control information including information which relates to a timing for playback, and the control information including information which indicates if a compression coding type of video information is MPEG2, wherein the control information is read and provided to play back the video object by the information playback system, and the video object is accessed according to the read control information.