HandBrake is an open-source, GPL-licensed, multiplatform, multithreaded DVD to MPEG-4 converter, available for MacOS X, Linux and Windows.
Supported sources: HandBrake is not limited to DVDs: it will now accept practically any type of video as a source.
Outputs:
* File format: MP4, MKV, AVI or OGM
* Video: MPEG-4 or H.264 (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
Download http://handbrake.fr/