Tjek
http://handbrake.fr/details.phpHandBrake is an open-source, GPL-licensed, multiplatform, multithreaded video transcoder, available for MacOS X, Linux and Windows.
Screenshots
Supported Sources:
•Most common multimedia files that libavformat and libavcodec support.
•Any DVD or Bluray-like source which is NOT copy-protected. (removal of copy protection is not supported)
Outputs:
•File format: MP4(M4V) and MKV
•Video: H.264(x264), MPEG-4(ffmpeg), MPEG-2(ffmpeg), or Theora(libtheora)
•Audio: AAC, CoreAudio AAC/HE-AAC (OS X Only), MP3, Flac, AC3, or Vorbis. AC-3, DTS, DTS-HD, AAC and MP3 pass-thru
Misc features:
•Chapter selection, Chapter Markers
•Subtitles
•Vobsub and Closed Captions
•SRT import and passthru
•SSA passthru or burn-in (experimental)
•Constant Quality or Average Bitrate Video Encoding
•Support for VFR, CFR and VFR
•Video and Filters: Deinterlacing, Decomb, Detelecine, Deblock, Grayscale Cropping and scaling
•Live Video Preivew
•Built-in presets for common devices