Originally posted by canyontraveler Ok, I figured out what I was doing wrong and can now take the card out and put back in without deleting. But do have another question. The reason I take the card out in the first place is because I have an HP printer that can be used as a stand alone printer and like to put the SD cards in to make changes and print. If I take the card from the K20 and put it in the printer and then put back in the camera, I'm assuming that it will not reformat the card again so as to mess anything up.
No it won't re-format the card and the K20 will not delete any files, unless you use the menue to do so willingly. You can pop the card in and out as often as you want and all the existing files will be on there and not be overwritten. The K20 simply adds new folders with every new shoot and places the new images in there until the card is full and you have to decide what to do.
Ben