Originally posted by Kolor-Pikker This is a common problem. Before taking the card out of the reader or disconnecting the camera, you have to eject the device first. If you get this error put the card back into the computer and eject it, and then the camera will read it properly again.
I always eject it first before taking the card out of the reader. I'm using a Mac, and that has become ingrained.
However, I tried what you suggested, out it back in the reader, hooked the reader up to the computer, went to the file menu for the card, and selected "eject." I out the card back in the camera, and go tteh message that the card was not formatted.
Other suggestions?