DVD::rip is a full featured DVD ripping program. It is easy to use and has a lot of extra functions. You can control almost all aspects of the ripping and transcoding process. It works well on linux and uses additional open source tools to give it full features. You can rip to hardisk or from a DVD image. It is also possible to rip audio tracks from the DVD. It supports a large number of formats for video and audio. DVD::rip is licensed under General Public License 2 and is free software. If you are using Ubuntu all you have to do is go to Applications, Add/Remove and install DVD::rip. If you would like additional information or a manual then visit their website.