As the above person I never have problems which is why I use DVD Decryptor to rip and DVD shrink to re author and burn with Nero.
Use Decryptor to rip simply because it is quick and has a 99.9% success you can rip with DVD shrink but WHY? it does not work as well.
When burning with Nero you do not open Nero you use the burning utility in DVD shrink and it burns with Nero without actually opening the software.
Now all of the above software is either free ware or can be obtained for FREE so if you are having issues with substandard software you actually purchased then you might consider this a wake up call because the over the counter can be purchased software will not work nearly as well as the free ware stuff designed by Hackers.
Gold , platinum, silver??? used to own X-copy crap software that used to change the names of the software to make you think you were getting better stuff. It was a crap however.
DVD shrink works so well the major movie companies paid the guy a lot of cash to stop updating the software. Instead of fighting him in court they paid him off because every time they changed their encoding he would issue an update the next day to work around it. Do not download the last version of DVD shrink as it does not work as well as former versions simply because it was part of the agreement.