Patent ID: 7672567
Filing Date: 2010-03-02
Classification: G11B,H04N

Abstract:
1. A computer-readable non-transitory medium storing a data structure for managing reproduction of at least video data having multiple reproduction paths, comprising: at least one data area storing at least two clip files of the video data for at least one segment of a title, each clip file of the segment is associated with a different one of the multiple reproduction paths respectively; a playlist directory area storing a playlist file including at least one playitem corresponding to at least two reproduction paths, a path number being assigned for each of the multiple reproduction paths, the playitem identifying each reproduction path based on the path number; and a clip information directory area including at least two clip information files, the clip information files having one to one correspondence with the clip files in the data area, each clip information file including at least one entry point map identifying a presentation time and an address in the video data, each clip information file being associated with a different reproduction path of the multiple reproduction paths, wherein the playlist file includes information indicating the number of playitems, the at least one playitem including information indicating the number of the multiple reproduction paths and seamless navigation information for seamless data reproduction, the seamless data reproduction being performed at an entry point identified by the associated entry point map, each reproduction path of the multiple reproduction paths being an alternative path to each other, each playitem includes a single pair of in-point and out-point that point to a start time position and an end time position respectively on a time axis of the video data.