Apparatus and method for simultaneous use of audiovisual data (Description of related application) This application is a provisional application filed on Feb. 21, 2003: No. 60 / 449,162 (switchable AV data existing on a recording medium) Claim the benefits of the invention. The entire contents of the provisional application are incorporated herein by reference.

摘要

An Audio Visual reproduction system for reproducing data from a composite media stream with various stream types including video, audio, and subtitle stream. The audio stream may include a plurality of interchangeable audio substreams and the subtitle stream may include a plurality of interchangeable subtitle substreams. Selected substreams may be simultaneously reproduced under user control. The reproduction includes a composite media stream separator unit, a video decoder unit, an audio decoder unit, and a subtitle decoder unit. The audio decoder unit can simultaneously decode a plurality of audio substreams to produce a plurality of audio outputs. The subtitle decoding unit can simultaneously decode a plurality of subtitle substreams to produce a plurality of subtitle outputs. A player and user model for simultaneously utilizing multiple substreams of a stream type contained within an application that conforms to a standard wherein only one substream of each stream type is used.