There is nothing showing in my _vt_cnf file.
Ok I look in my data directory and look in my 500 folder and I got 3 folders, medium, mini and thumbs. also in this main 500 folder with the 3 folders I got a bunch of thumb images.
In the thumbs folder I got the same.
So it seems I do have duplicates but not sure which ones to delete.
In my other folders I have regular images and the same three folders. thumbs, medium and mini.
I can give access if you can have a look for me and see what happened during this upgrade that I gained so many megs and its got to be with duplicate images I think.