Dave, I have more than one program that will burn CD's. I use Kristal for tweaking a recording but not burning. I will try one of the other one and see if it could be that software. But, this has occurred in the past with other software, so, it's not a new problem. I was curious if going commercial, even if they use duplication (which I assume is nothing more than burning), solves this. And, if all short runs use duplication. And if replication solves this. Of course, replication probably isn't used for short runs.