How can I get PerfectTUNES to rescan only the corrupted files?

I have ~11,000 files, first time I ran PerfectTUNES it reported ~6,500 corrupt. Then I read about how it doesn't handle files on a NAS very well. I re-ran it, this time I got 38 corrupted files. I verified a few of those manually (with metaflac --test), and they were fine, so I presume this is still a network glitch. I'd like to rescan just those 38 files, without clearing my whole database, but I can't see how to do that - please tell me it's possible?