I am looking for an alternative to DVD Decrypter that will run under Ubuntu. Can anyone recommend software for this? I do not need encoding/transcoding or anything fance like that, my only requirements are to save to an ISO image and de-CSS.
K9Copy is a good all-in-one solution with a friendly GUI. It can save DVDs to an ISO image, with or without shrinking for DVD-5 compatibility, and optionally transcode to other formats. You will need to activate the multiverse section of the repository in order to install it.