Patent ID: 7643727
Filing Date: 2010-01-05
Classification: G11B,H04N

Abstract:
1. A method for recording data for managing reproduction of video data representing reproduction paths, the method comprising: (a) receiving video data from an external source; (b) recording the received video data as a transport stream in a plurality of stream files on a recording medium, at least two of the stream files associated with multiple reproduction paths and the stream files interleaved with one another, and one or more stream files associated with a single reproduction path and the one or more stream files not interleaved with the stream files associated with multiple reproduction paths; and (c) recording at least one navigation list file, a plurality of navigation data items and a plurality of map files including maps, the at least one navigation list file including first and second navigation data items, the first navigation data item referencing more than one map for managing the multiple reproduction paths and the second navigation data item referencing a single map for managing the single reproduction path, and each navigation data item including an identifier identifying the map file associated with the navigation data item, the map file including at least one map providing position information data for the video data, wherein a flag is stored in the first navigation data item, the value of the flag indicating that the first navigation data item is provided for the multiple reproduction paths, and wherein a flag is stored in the second navigation data item, the value of the flag indicating that the corresponding second navigation data item is provided for the single reproduction path, and wherein the navigation list file is separate from the map file and the stream files.