Not that it matters all that much anymore because there are so many ways to copy a copy protected DVD, a federal judge says it is illegal. What about the so-called fair use doctrine? RealNetwork’s DVD copying software was ruled illegal because it violates the Digital Millenium Copyright Act, which prohibits circumvention of encryption technology.
But the decision, although mixed, left open the door that copying DVD’s for personal use “may well be” lawful under the fair use doctrine of the Copyright Act, although trafficking in such goods was illegal.
To summarize but not finalize, it could be legal to copy your DVD movie for personal use, say, as a back up, but you can’t use any technology which circumvents the copy protection schemes to do it.