I tried 'Clone Cleaner Lite' and while it was fast, it was totally useless for the images taken by my wife who's camera restarts the image number from the beginning when you empty the card.
It finds duplicate file names, great, there are plenty of those that I know are different images, and by file size, as she always shoots at the same resolution there are plenty that are the same size but different images, while all these different images are in different folders there are plenty that are duplicated
and both search methods are useless in this situation.
What I need to find is one that will compare the actual file structure or the even just the time stamp in the exif.
Cheers David