I bought four Sony “TOUGH” CFexpress cards, and formatted them in my camera (Nikon D5), but one of them could not be formatted and give the following error “Cannot access and format this memory card. Insert another card”.
However, I was able to format the card on my laptop, and after doing that the camera could then format the card, and I was able to record images on it, and view them on camera, and also read them from the card onto my laptop using the CFexpress card reader.
So I’m hoping no more issues with this card. Funny that the other three cards formatted OK in camera.