Prevously known as "MakeMKV Auto ripper", Autorippr is an automated DVD ripper. It combines several well known applications into one automated bundle that rips content from discs onto your hard drive, compresses the video content, looks up subtitles and finally renames if required.
Built using Python, Autorippr is able to be run on almost all linux distributions and OSX. It is able to search multiple disc drives, check video length, eject discs after completion and run without user intervention.
Since the original post in October 2012 there's been a huge change code wise with a few more features including FFmpeg support, completion commands and TV show support (in testing).
Autorippr is open source and welcomes any sensible additions. It is available on GitHub.
Installation documentation is also available if you need help setting it up.