Over the weekend I burned a couple of Xmas mix CD's using Nero as I always do. I brought them to work today to listen to for quality before I start making copies.
The first one I made sounded just awful -- lots of what I can only descibe as some sort of digital echo on all the tracks, a sort of "chigga-chigga-chigga" sound that made it a chore to listen to. Un-usable, in any case. The second one, made 2 days later and using some of the same source tracks, sounds just fine.
So... What would cause the bad one? a faulty or dirty blank CD? I'm puzzled.