DVD copy from file

I've been attempting to burn DVD's and it's not working.

I have copied the movies to my computer, but now I can't decrypt it from there and now I no longer have the original DVD.

Does anyone know how I can decrypt and copy the file from my computer?  DVD Decrypter won't allow me to.  :( 

I have done nothing to these videos so they are in their original format....

Thanks! 

DVDshrink doesnt decrypt alot of the newer movies because of newer securities, but like Iceprincess said, DVDFAB is a great program...

I use DVDFAB Platinum and it can burn any movie to date... they release updates regularly to ensure accurate decrypting.

One piece of advice though... If you use DVDFAB make sure you go into the settings and change the burning speed to 8x otherwise you might have some glitchy playback...

"I want to live my life so that my nights are not full of regrets."

So I know this is really is really late of a reply but I just came across this post as I was looking for help with a nero issue. But if anyone else out there needs it, DVDFAB decrypter all versions is a great program that you wont have to decrypt then shrink then burn will do it all in one.....it is not free but it is a 30 day free trial and then there are like 4 versions of it so when one trial is up, got to the next version.