Casio G'zOne Boulder

I took my card out of my old voyager. It has lot of sounds and pictures on it. When I go to look at my pictures, it shows some, but over 50% is a torn picture. Is this a software problem? Is there anything I can do to fix this? I have quite a few pictures that I would like to use. Im not really worried about the songs as much as pictures. Can anyone help me out here and tell me what I can do if anything