My Lite-On burner, a LTR-48246S, has had some trouble with the Ritek made TDKs. They burn fine until the last third of the disk, then start getting a fair amount of C1 errors around the 50 mark. This is at maximum speed using Cd Doctor. If I slow down the testing speed to 12x or so, it reads much better.
Strangely, the Memorex branded Prodiscs that I have burn perfectly at full speed and can be read at full speed with very low error rates -- well under 5 average, I believe. Still, I don't burn too much CD-Rs, so I'm not going to worry too much, it's just that I expected more out of the TDKs myself due to the Dolphin's review. Speaking of whom, where is he lately? He hasn't updated in like a month... hope that he and his computer are ok [xx(]