thanks for all the helpful comments. I’m going to find some Verbatim dvd’s (now, DVD-R? DVD+R? I have a dell) and just bring the defective one back and ask him to re-burn it on my own disc.
There was no label — just the usual Sharpie-written label.
Also, I heard that someone else had the same problem with her disc, so at this point I’m not too surprised.