I don't know of any solutions, but I did find this out yesterday.
Snapz Pro X 1.0.1 can capture DVD video! Of course, it would be really annoying and you'd need a really large hard drive if you wanted to use a movie capture to "rip" the DVD movie.
Supposedly, right now, this feature can only work on systems with an nVidia graphics card. So peeps with ATI graphics card: no luck (yet).