Please help! I put my friend's SD card into my computer and it didn't seem to open the files properly. I placed the card back in the camera and 600 pictures are gone...in seconds?! Can I do anything at all?!
I too had this issue once, what I did is I put the card back into the iMac, opened disk utility to make sure the mac still recognized the camera, and then when I saw that I double clicked on the actual SD card icon on the desktop. I saw all my files were still in the card.