Hi Trix,
I may be dumb, but here's my question:
Process #1 says "Extract Artwork (Copy from tag to mask)"
Mask ?? What Mask? Where is this Mask and what is it?
You see why I search for a user guide?
There are sixteen processes in your excellent script, and I 'm not quite sure exactly what they all do? I mean specifically - down to the very least detail.
This is extreemely important to know, as misinterpretation leading to wrong use can cause havock in a library of 245k songs!
Ooops, I made a mistak

Sorry, too late!
Please give us a link to an excellent and detailed user guide.?

Rgds
Viking