[What's the next step here?]

No worries, but to the new poster, what is this "more complicated" package you have used successfully where recuva fell short please?

[What's the next step here?]

This is an NTFS external hard drive.

 

So, is there anything else I can do? Is there a possibility that sending the drive to a professional recovery company would be able to put these files back together?

[What's the next step here?]

So I ran the program, searching for photos. Got lots of results. Sadly, most of them it says have been overwritten. But, a lot of them it says "no overwritten clusters detected". But I still can't recover an image from these files! What's the deal? Over 700 "recovered" files and I can only see about 15 images. Why does it call them recovered then? And if they aren't overwritten, surely they must be recoverable?

 

Is there another process I need to do or should I consider sending the drive in for professional recovery? I'm a photographer, and these images are worth money to me.