DVDXCopy does not remove the security encryption, therefore their backup disks carry the same copy protection as the originals.
Before you use DVD2One, you have to use DVD Decrypter, Smartripper, or other decryption software to rip the DVD to your hard drive. Therefore, there's no encryption in the finished product after processing with DVD2One. I've had no problem copying DVD2One processed DVD's. Your problem may be with your burner or your media.