hello, i need some assistance. I shot raw cr2 files with canon 5d mk3 and 1/2 the files on the CF card are corrupt. I can see the photos fine on the back of the camera LCD but they will not download onto my Mac computer ( latest OSX ), it says error code ( cannot be read ) when I try. I then tried to recover the files in software ' PhotoRecovery 11 ' but it was unable to rescue the files. The files are on a Sandisk 8gb udma 60mb CF card. Can anyone point me to a solution to recover the files? A better software? Is there a lab or company that is likely expensive but expert that I can send it to ( USA ) ? Thanks so much.