I've fixed the files for my personal collection, and at some point within the next year, the hopeful plan is to re-release every past album with updated tags, embedded album art, and all the other bells & whistles.
I wish I could say stuff coming's out tomorrow, but it'll be a while. That said, maybe before the end of the year, I'll host a ZIP of just the tracks known for having screwed up encodings so you and others can grab 'em.