While refreshing updated profiles today, I noticed something odd: individual entries (same name, same UPC) were being repeated on the list 3-5 times each.  I've had DVDP running for a while without closing it, though not sure how long exactly.  Only other thing I've changed recently was adding the Last Edited column to the DVD list.  Oh, and last night I ran the plugin for the scrolling feed of titles.

Restarted, and the problem has gone away.