Thoggen is a DVD ripper for Linux within the GNOME project. It is based on GStreamer and Gtk+. The current version can back up DVDs by encoding them using the Ogg Theora video codec.
Thoggen is designed to be easy and straight-forward to use. It attempts to hide the complexity many other transcoding tools expose and tries to offer sensible defaults that work well for most people most of the time.