next limit is the stack, if the dir tree is too deep you will get a stack overflow.
Seems it managed to clean 8 but not 9.
But for my original actual case, before I put things even deeper for testing, it is just enough to be ok.
In my case I really don't think it's such a big deal if the deepest folders don't get cleaned.
It's no place I will go browsing for music.
But a possible sollution would maybe be to let Disktidy start with the current folder (in the browser) and clean the 8 allowed but no further down. If the user wants his one deep folder to be cleaned he can browse there and Disktidy will that folder and its contents?