Copying a DVD after using DVD2One

Question, after burning a DVD-R (after using DVD2One and Nero), if I want to make a copy of this same DVD-R, can I just make a copy of it now?

Shouldn’t be a problem. When you ripped it, you removed the encryption. You should be able to use something like Nero to make your copy.

Yes, the easiest way IMHO is to use DVD Decrypter in ISO mode.