You may try DVDFab HD Decrypter free version. Free DVD Decrypter,Blu-ray Decrypter from DVDFab. Get Free DVDFab products, and try out DVDFab for free.
The free version has some limitations. While it can copy full movie for sure, I am not sure whether it can copy only the main movie. You can experiment.
Then again you may not be able to copy/burn directly to a DVD. But it can create an ISO which you may then burn it to disc even with the Windows native Image burner.