Computer Help and Support

When data is misplaced by a drive and can't be accessed it goes into a file to protect it with the highest admin privileges. You can access it yourself but you need to put it in a computer and run a small operating system that you can use to recover the data. All Linux os's can do this. I'm sure mac's can as well since they are a Unix system.

The only reason I explained this is so you're aware that there's a reason the data was lost in the first place. It could be the card, the camera or the formatting that messed it up.