I noticed his other posts, and thought the 'non-response' was strange too. I suppose I am left to believe Nero's support believes there is nothing that can be done, and that any response is not going to help.
It's too bad as I thought Nero's BackItUp was essentially the only application which addressed DVD writing, which didn't also have a reliance on someone else's packet writing drivers. I was looking at buying more licenses!!!
As important as is the integrity of archiving, I would have assumed Nero would be intent on failure analysis as it pertained to this particular product ... and helping their customers. That said, I have yet to hear from directly accessing the support via the internet, and would have called their 888 pay-as-you-go help line, if I had any confidence I'd not be wasting my money.
edit: I should also add (if nero support is interested) I did find the log file which documents the previous disc writes and the subsequent failure (... some type of 'power calibration' error ...). All Nero need do is express an interest, and indicate who wants it and how to deliver.