If by “coasters” Mike means a disc that burned, but didn’t scan well, I’m not entirely surprised.
I myself bought a 10 pack of MCC 004 (Lightscribe) Verbatim DVD+Rs and 9/10 of them burned, and verified, wonderfully, scanned a few with Disc Quality scanning (which I rarely rely on but it works well with MCCs) and they showed VERY low PIF counts.
[B]However[/B] one of the discs burned very badly, with a PIFs surging towards the end of the burn, and TRT rate that fell to the region of 2-4x, fluctuating wildly.
Based on those results, I tossed the disc, even though it was readable. It was clearly very weak.
That said, between the excellent DQ scan results from the other 9, plus the nice looking Lightscribe labels (don’t have a disc printer and had very bad experiences with paper labels), convinced me to buy more MCC/AZO Verbatim discs in the future.
I will just feel the need to examine each burn thoroughly.