Hi everyone,
I have a 50D and I've had it for awhile with no problems. Unfortunately my wife was using it today and it she filled the card. She put a new card in and it didn't work. She put the old card back in and it flashed: err message. Now when you try to review the pictures the camera says the card is not formatted and to format the card. When you try to reformat it says card cannot be reformatted and to insert a different card. When we put other cards in it says the same thing. Anyone have any thoughts? Solutions? Has this ever occurred to anyone?
Haven't tried updating firmware because I loaned my reader out.

Would appreciate any insight.

-V