Patent ID: 7835623

Claim:
An optical disc having a data structure for managing reproduction of video data having multiple reproduction paths, the optical disc comprising: a first file including, first information for reproducing a unit of the video data using a first identifier identifying a second file, the unit identified by the second file, and second information for reproducing a title unit of the video data using a second identifier identifying the title unit of the video data; the second file stored as a separate file from the first file, the second file including, at least one playitem including a pair of an in-time and an out-time, the pair identifying a playing interval in the clip, the playitem including information indicating a reproduction path of the multiple reproduction paths, and mark information including a first field indicating a number of marks in the second file, the mark information including a second field indicating a type of mark in the second file; a third file including timing information of the clip; and a fourth file including source packets of the clip.