My Konica-Minolta Maxxum 7D "felt weird" yesterday when I inserted a CompactFlash card. It then didn't recognize the card, offering to format it, but the format failed. Same with other cards I inserted.
It's out of warranty, and I suspect a fix is going to be over $200. Is it worth it, when it's probably only worth $350 or so? I'm not sure. But a new camera is $500. Ugh.
Update: it's now at a local independent camera shop being looked at. Hopefully it'll prove to be something simple.
Update 2: Fixed at Camera Tech of Anaheim for $95. Recommended to anyone.