Multiplexing Audio/Video Streams:

If you have only encoded your Video (MPV/M1V/M2V) and you want to combine it with a different/several Audio then the one included in your movie source (AVI/DVD). You will need to "Multiplex" it so it will still conform with Standards.

Multiplexing! I-Author Deluxe ImagoMPG-Muxer TMPGEnc - MPEG Tools avi2mpg2 - bbMPEG multiplexer Womble MPEG Video Wizard 2003

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