I’ve been testing DVD Movie Backup (a.k.a. Shrinkta):
It’s a very simple front-end for creating an ISO image from a video DVD.
Under “Preferences” users have the option of either using the original dual-layer DVD disk format (which preserves the full video quality) or the smaller single-layer DVD format (which “shrinks” the video down to fit the disk size, but also reduces the video quality to about VHS quality). Hence the name.
It also gives you the option of copying the entire disk (menus and movie/feature) or just movie only.
Don’t be fooled by its small size. This is one handy little ripper.
Most Linux users can find this program in their repositories under the name Shrinkta.