The solution to DVD Copy 1:1
Rip your complete DVD (All files) to HD into a folder named 'VIDEO_TS' and make sure the folder name is uppercase. Use SmartRipper or DVD Decrypter for that job.
Open any IFO file with IfoEdit and press 'Get VTS Sectors' to make sure all start sectors are correct. When asked, click 'Yes' to check all IFO files. On a DVD-5 there should not be any different start sector.
To make your DVD region free, open the file 'VIDEO_TS.IFO' with IfoEdit and press 'Region free'.
If IfoEdit tells you that no RCE checking was found, save this IFO files and you're done and may proceed to the burning section. But if RCE checking was found, you must load all other IFO files too, and repeat the 'Region free' procedure.Now you may burn the VIDEO_TS folder with a burning tool using my burning guides. If have trouble with this, then start IfoEdit again, load any IFO file and press 'Create Image' to let IfoEdit create an image for you. That one can then be burned with any burning tool except Nero!