HandBrake

HandBrake Publisher's Description:
HandBrake is a GPL'd multiplatform, multithreaded DVD to MPEG-4 ripper/converter. HandBrake was originally available on the BeOS, but now has been ported over to MacOS X and to GNU/Linux.

* Supported sources:
o Any DVD-like source: VIDEO_TS folder, DVD image or real DVD (even encrypted)
o PAL or NTSC
o AC-3, LPCM or MPEG audio tracks
* Outputs:
o File format: MP4, AVI or OGM
o Video: MPEG-4 or H.264 (1 or 2 passes or constant quantizer encoding)
o Audio: AAC, MP3, Vorbis or AC-3 pass-through (supports encoding of several audio tracks)
* Misc features
o Chapter selection
o Basic subtitle support (burned into the picture)
o Integrated bitrate calculator
o Picture deinterlacing, cropping and scaling
o Grayscale encoding

What's new in this version:

* Dolby Digital 5.1 (AC3) sound in MP4 files, for a true DVD experience on the AppleTV and in Perian.
* Multi-track audio support for Apple devices
* iPhone-compatible anamorphic video at its full size
* Variable frame rate encoding with detelecine filtering
* More flexible, "loose" anamorphic video
* MP4 optimization for progressive web downloads
* Dynamic range compression for encoding from AC3 audio
* Robust program and transport stream support
* A fresher, faster version of x264
* Tuning of FIFO sizes by processor count
* Better handling of audio discontinuities
* Better handling of DVD read errors
* Work-arounds for missing end-of-cell markers
* Recovery when streams have signal loss
* Better synced chapter markers
* Better handling of B-Frames
* No more cutting off the very ends of films
* No more lost subtitles or chapter markers
* No more crashes in 2-pass encoding