Patent ID: 8849092

Claim:
A computer readable medium having a data structure for managing reproduction of a data stream, comprising: a navigation area for storing navigation data associated with the data stream representing a portion of at least one reproduction path, the navigation data including indication information, the indication information for indicating whether the data stream represents multiple reproduction paths or the data stream represents a single reproduction path, and the navigation data includes path number information and an indicator associated with each reproduction path, the path number information for identifying path numbers respectively of the multiple reproduction paths, and the indicator for indicating a file associated with the associated one of the multiple reproduction paths, wherein, when the indication information indicates the data stream represents multiple reproduction paths, the navigation data includes entry points of a plurality of audio or video streams, as the data stream, respectively forming the multiple reproduction paths and reproduction path change points set based on the entry points, wherein at each reproduction change point between any one of the audio or video streams and at least another of the audio or video streams, the corresponding entry points of the one audio or video stream and the at least another audio or video stream have a same presentation time stamp, such that during reproduction transition at the reproduction path change point is seamless.