They were worm filled - yuck! But according to brave and frugal mama's http://www.mothering.com/discussions/showthread.php?t=943805 they are still usable (a couple suggested that they are not treated with chemicals). This was a really gross job because I have a worm phobia. A few were still alive crawling out of the plums. The cleaner, firm pieces I set aside and froze. The mushy more brown pieces, I made into a plum sauce. I cheated and used sugar to preserve them. I consider this equal exchange because of the worm trauma.