@welshwizard645
I have now tested with a Sandisk SD card and as I surmised the program (none too surprisingly?) is card manufacturer agnostic.
This particular card was/is interesting in regard to the recovered files dates:-
It found some taken this year which I think were a quick camera test ~ reason forgotten.
Some from May 2023
Others from June 2022
Now, as mentioned elsewhere is it my practice to, once I have backed up the images to two drives, format the cards on my PC to make them ready for re-use. Then once in camera I format in camera to ensure the camera is happy with the card.
So, to find files from 2022 was a surprise....though having said that I cannot recall how often since 2022 I have used it but as I only bought my ProGrade cards this year this Sandisk was one of my primary cards
Note ~ Recovery Pro as part of the work through asks which camera make you are using.
In my case now OM Systems but the choice in the program list seems a tad out of data as it says Olympus. I have pointed this out to ProGrade as unlike their information about the software that shows thumbnails of the images found, I do not see the thumbnails for my .orf raw files.
In summary, I can only suggest that you try the evaluation download and see what it reports (it should be s specific number of files and depending on your camera make, as chosen in the software as appropriate?) you may see the aforementioned thumbnails???
If it does indeed find files and based on my experience once purchased and registered = files saved and usable.
Further note ~ as mentioned I shoot raw and most raw viewers will display the embedded jpeg . However, I use FastRawViewer to check and cull my files and that I understand shows the raw files....and it does not say there is an issue.
Oh, lastly the one thing (in common with all recovery programs?) does not retain or show the original file number/names. What you get is a sequentially numbered set of files "File0001.extension" and onwards.
I hope all that has been of help and hopefully you will get your files back
