I am having a similar problem. 2 months ago, using Nero 6608 I had no problems. Now I have upgraded to Nero 6612 the burned discs just spin and click in the dvd drive but will play fine in the stand alone downstairs.
I am still burning the same batch of discs - fuji TY02 which worked fine 2 months ago. I have tried reinstalling Nero 6608 but no change so it does not seem to be a problem with Nero. I have reflashed the drive to 2.16 no luck. Gone back to Herries 2.18, still no joy.
However, the problem is intermittent - occasionally, a burned disc will read ok but I have not identified a pattern yet. I have read similar posts in other forums (all unsolved) and I am beginning to think that the drive itself is knackered. Since I bought mine from Microland a week before they went bust (I was lucky to get anything out of them!) the warranty is now hanging in the bathroom as emergency toilet paper.
How is everyone else doing? Any closer to identifying the cause? I hope it is not a faulty drive!