HandBrake is an open-source, GPL-licensed, multiplatform, multithreaded video transcoder, available for MacOS X, NetBSD, Linux and Windows. Supported sources: * Any DVD-like source: VIDEO_TS folder, DVD image or real DVD (unencrypted--protection methods including CSS are not supported internally and must be handled externally with third-party software and libraries), and some .VOB and .TS files * Most any multimedia file it can get libavformat to read and libavcodec to decode. Outputs: * File format: MP4, MKV, AVI or OGM * Video: MPEG-4, H.264, or Theora (1 or 2 passes or constant quantizer/rate encoding) * Audio: AAC, MP3, Vorbis or AC-3 pass-through (supports encoding of several audio tracks) Misc features: * Chapter selection * Basic subtitle support (burned into the picture) * Integrated bitrate calculator * Picture deinterlacing, cropping and scaling * Grayscale encoding