Copying Music Folders Problem


I have a little problem and I hope someone can help me with it.
First thx for the program its super.

This is the situation, I created a folder for an artists and in that folder I have different other folders with albums...Now in the artistfolder I changed the folder prefs from documents to Artist and in the subfolders I changed it to Musicalbum and the albumcoverpic to the folder.

Now if I copy the artistfolder into another map (my music) all that work is lost, the artist map is again documents and the nice albumcovers for the subfolders now display every pic inside(this is solved by using folder.jpg as cover but this is beside the prob).
I allrdy tried making the artistfolder(and subfolders) only readable but this doesnt work.
If anybody knows a solution I would be thankfull.