dvd::rip is a full featured DVD copy program written in Perl. It provides an easy to use but feature-rich Gtk+ GUI to control almost all aspects of the ripping and transcoding process. It uses the widely known video processing swissknife transcode and many other Open Source tools. dvd::rip has quite a few soft dependencies. Check "Debug -> Check dependencies" in dvd::rip for details. If operated in cluster mode, only transcode has to be installed on all slave nodes, not dvd::rip itself.