Patent ID: 7783160

Claim:
An optical disk storing a data structure for managing reproduction of at least video data having multiple reproduction paths by a reproduction device, comprising: a data area for storing stream files, the stream files including at least a portion of the video data having multiple reproduction paths, the video data having multiple reproduction paths being divided into one or more interleaving units, each interleaving unit associated with one of the reproduction paths, the interleaving units associated with different reproduction paths being interleaved in the data area, and the video data in each interleaving unit including one or more entry points; a playlist area for storing playlist files, the playlist file including at least one playitem, the playitem identifying a playing interval in at least one clip of the video data, the playitem indicating at least one clip information file for an associated reproduction path used by the corresponding playitem; and a clip information area for storing clip information files, the clip information files for managing reproduction of the video data having multiple reproduction paths by the reproduction device, the clip information file including an entry point map associated with corresponding one reproduction path of the multiple reproduction paths, the entry point map mapping a presentation time stamp to an address for a corresponding entry point of the video data, each entry point map associated with a corresponding stream file and identifying the entry points in the video data for the associated reproduction path, the entry point map including path change information for identifying entry points at which enter to an associated reproduction path from another reproduction path is permitted and exit from the associated reproduction path to another reproduction path is permitted.