HandBrake is an open-source, GPL-licensed, multiplatform, multithreaded video transcoder, available for MacOS X, Linux and Windows.
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SubDownloader is a program for automatic download/upload subtitles for videofiles (DIVX,MPEG,AVI,VOB,etc) and DVD's using fast hashing.
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WinFF is a GUI for the command line video converter, FFMPEG.
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