Some of the photos inside my cf card cannot be viewed in the camera (D70). It just appeared as a small red box in the center with a cross. When I tried to view the content of my CF card using my comp, there are many subfolders in it. The files inside subfolders have a .if extension. Some of the photo also have weird filesize information, coming to >200mb. Any idea is this a cf card problem or a camera problem?
Just to add, sometimes I will get a CHA error when I insert the card. Need to insert a few times then can work.