I use the following programs.
1. DVD Decypter, available from
www.dvddecrypter.com
2. DVD2One, available from
www.dvd2one.com
3. Nero, available from nero.com
You use the software in the order I've listed them to get the DVD movie onto one DVD-R without any noticable loss in picture quality.
I'm not sure if you can disable Region Codes, perhaps someone else on the forum could answer that.