New answers tagged mp4
Have you tried WebVTT for marking up the subtitles? http://www.w3.org/community/texttracks/2012/08/23/webvtt-support-in-browsers/ http://ie.microsoft.com/testdrive/Graphics/CaptionMaker/ is a surprisingly good tool for making captions. You could also cheat a bit and use Youtube's pretty good voice recognition to perhaps save time transcribing.
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