Thank you so much for the prompt reply. That was great. I did as you asked and enter the profile in the system. I don't know of any corrupted files as they all play when I preview playback prior to burning. Also, I have an LG Lighscribe DL DVD burner. I don't think it's "supported", but I get the same eroor message whether I try to save as an ISO or burn to disc. I have been Video Editing for many years now, and frankly, after trying to find a solution on my own, I am quite puzzled.
Hope all is well in Taiwan. I was born and raised in Italy myself.
I hope you can think of another solution. Thanks again.