[Howtp] Convert h.264/AC3 .mkv to h.264/AAC .mp4

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http://forums.fedoraforum.org – If you are familiar with using BitTorrent to obtain certain ethically grey area high-def video files, you are probably familiar with the Matroska Media Container, though you may only know it by the extension .mkv at the end of the file. Matroska Media Container can contain many different video/audio encodings, in fact the WebM standard being pushed by Google for HTML5 video is actually a Matroska Media Container using VP8 stream for video and Vorbis stream for audio. Anyway, for certain video content commonly shared by BitTorrent, the video stream is h.264 and the audio stream is Dolby 5 (HowTos)