Try this combination of tools.
Use AnyDVD in the background to break encryption.
Get DVDDecrypter http://www.videohelp.com/tools/DVD_Decrypter
Go into Tools-->Settings of Decrypter and uncheck the box for Check for Structural Protection. Click OK.
Go to Mode in Decrypter and set it for ISO Read.
Make the ISO file of your movie using DVDDecrypter. You will get the ISO and a small mds file along with it.
Get ImgBurn www.imgburn.com Start the program and load the mds file you just made with Decrypter. Set burning speed to 4x. Burn it to the disk.
Enjoy your backed up movie.
ImgBurn is the best burning program I know of for DL media. It will set the layer break correctly for this type of burn.
Edit: I'm a little late, but I did a lot more work here!