I had a similar experience recently. A burn with a 760 and nero reporting a couple of different sectors upon verify. Immediately burning the same compilation again showed no errors anymore. Data corruption is usally a driver problem. But frankly i'm clueless what could have been the cause ...
I did have one earlier instance of data corruption, see here: http://club.cdfreaks.com/showpost.php?p=1511782&postcount=15 also one other person (see that thread) had similar problems.
What software where you using? PTP(XL)?
BTW: can any moderator change the topic to something more meaningful?