HandBrake is an open-source, GPL-licensed, multithreaded, multiplatform DVD to MPEG-4 converter.

Supported sources:
· Any DVD-like source: VIDEO_TS folder, DVD image or real DVD (encrypted or unencrypted, but protection methods other than CSS are not supported and must be handled externally with third-party software)
· PAL or NTSC
· AC-3, LPCM or MPEG audio tracks

Outputs:
· File format: MP4, AVI or OGM
· Video: MPEG-4 or H.264 (1 or 2 passes or constant quantizer 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
· Credits

HandBrake uses a lot of (L)GPL librairies from the Linux world:
· liba52 (AC3 decoding)
· libavcodec (picture cropping, scaling and deinterlacing, MPEG-4 encoding)
· libdvdcss (CSS decryption)
· libdvdread (DVD navigation)
· libfaac (AAC encoding)
· libmp3lame (MP3 encoding)
· libmp4v2 (MP4 muxing)
· libmpeg2 (MPEG-2 decoding)
· libogg (OGM muxing)
· libsamplerate (audio resampling)
· libvorbis (Vorbis encoding)
· libx264 (H264 encoding)
· libxvidcore (MPEG-4 encoding)