Patent ID: 6314234
Filing Date: 2001-11-06
Classification: G11B,H04N

Abstract:
A data storage medium for storing multiplexed video, audio and superimposed dialogue data, comprising:an area for storing video header data, said video header data including an indication as to whether or not said video header data includes a video decoding time stamp;an area for storing audio header data, said audio header data including an indication as to whether or not said audio header data includes an audio decoding time stamp; andan area for storing superimposed dialogue header data, said superimposed dialogue header data including an indication as to whether or not said superimposed dialogue header data includes a superimposed dialogue decoding time stamp,such that a device reading the storage medium can detect the presence or absence of a video decoding time stamp, audio decoding time stamp and superimposed dialogue decoding time stamp by reading said video header data, audio header data and superimposed dialogue header data areas, can determine the multiplexing state of data stored on the medium, following a failure to determine the multiplexing state based on table of contents data, by determining the presence or absence of time stamps within a predetermined period of time, and can control a plurality of decoding means to decode data read from the storage medium according to a reproduction start procedure based on the multiplexing state of the read data.