[Leo137]

That the algoritm sucks or not ain't your problem, is out the focus of your program and honestly you are just doing the best that you can with the availiable resources. Everyone who is critizing the algorithm is derailing massively from the thread topic, so that's sad ;(

Of what i noticed from the screenshots, it doesn't work quite right for files with multiple difficulties, the only solution that comes to mind is to process the same file for each diff, stripping all of them from the file excepting the current one to process