Handbrake

                                      

                            Now you can rip the size of movie without quality loss (blueray)

Details

HandBrake is an open-source, GPL-licensed, multiplatform, multithreaded video transcoder, available for MacOS X, Linux and Windows.

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

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