I ran into the same problem on my PC. I have some weird brand DVD copy drive, that apparently has problems with the Region code. The reason that I was eventually able to copy Being Julia is that I used a friends PC with a Phillips DVD and it worked!
Your solution is to go to the site specified in the error message for your particular brand of DVD drive. I am going to do the same thing now that I have confirmed the problem by using a different brand DVD drive.