Hi, I have an Integral 64GB SD XC memory card that I was using with my Sony HX60 when I suddenly got the message 'Unable to read memory card. Reinsert the memory card'. This message just stays on the screen and there is no options to select or do anything. Reinserting the card simply shows me the same message again. When I put the card into my iMac via the card reader or even hooked up through the camera it fails to mount or recognise the card whatsoever. What can I do in this situation?!! I know there may be no other answer but to send it to a professional data recovery company but I'd rather not spend several hundred bucks on it, even though the images stored on that card are highly precious. Thanks for any help.