If you do a search for recovery software you will get several products. Most of them have a free trail. Looks like you run the software then it somehow shows you what it has found. If it finds the images you want, you then have to pay for the software key to unlock the software and download the images. Might be worth a try.
I know that any recovery software takes a while to run. When we had to pay to recover files it the computer was running close to 48 hours. In our case we were looking for images so that is all they scanned for. We also knew the date they were shot and stored on the computer. They wanted that information.
This weekend I might download one of the products and try it out on my laptop, just for fun.