Card will not format
memory card? and SD card? whatever the card hook your camera to a usb to computer and find it under "my computer"
look at all your drives you should have like c, d , e, f, g, h, select the last drive and see if it finds your card if so try formatting it through the computer, whatever you do dont select c or d to format. if problem persists buy a new SD. I find good deals on ebay or Walmart.