text: Nero quite simply can't do it. Nero is a commercially made software so they have to abide by laws in place about copying DVDs. I have nero and have often gotten that error. If you need to pull stuff off the DVD, DVD Shrink is a very useful tool. It is capable of cracking any protection I have ever encountered. It also has an option of compressing or shrinking (hence the name) the content of a DVD. It can also directly access the Nero burning ROM so you could copy a DVD directly from DVD Shrink. Nero has the option of loading .vob files into it's video editor. If you need the whole movie as a single video file, just import those files you ripped in DVD shrink and export.