I tried another 5 rated product. It didn't locate any files on my MicroSD Flash card.
In contrast, MJM Photo Recovery spotted hundreds of files old and new, and has an extremely simple process for recovering them! It kept the EXIF data intact whilst renaming the files in a simple numeric sequence.
MJM PR reads each block, and presents a thumbnail of each photo it finds. It will scan the entire memory, though you can stop it part way through.
Overall, very simple, very effective!
License: Free Details...