usually i am very careful about using the same card in two different camera bodies, but alas and alack even the best intention can go astray. Is there anyway to accomplish a "full wipe" with just one body, or it is just important to insert card into each camera body? It seems as if there are different folders for each type, but it seems the folder remains (without image). I was testing some bodies and lenses the other day and the card shows each camera body, and even when formating the card i can't seem to get back to the recommended number of images available on the card. hope this makes sense.