Thanks for the help Phoenix, Compass and ZH. Unfortunately no luck with your suggestions. I’m connecting the camera (with SD card) directly to PC USB port, so I guess I’ll try the card reader approach next.
So far I’ve found that products which work (ie. Show you the deleted files but don’t let you actually recover them) have to be paid for. None of the freeware products I’ve tried seem to work. Ah well, back to the browser…
Thanks once again for prompt suggestions.