Welcome to the Forum.
From the information provided in your #4 posting the â€œProdyeâ€ Media you are attempting to use is actually DVD+R DL RICOHJPN D01 Media.
It has been discussed numerous times throughout the Forum that the ONLY DVD+R DL Media that consistently produces quality error free results is Verbatim DL MKM001/MKM003 Mitsubishi Kagaku Media. ALL other DL Media is considered suspect and should be avoided (not used).
In short discontinue the use of your known poor quality problematic â€œProdyeâ€ DVD+R DL RICOHJPN D01 Media and ONLY use Verbatim DL MKM001/MKM003 Mitsubishi Kagaku Media.