How to copy everything except .unwanted?

[pingosimon]

I've been reading around, and I understand that .unwanted is a necessary part of the system.

But does anyone have tips for easily dealing with those folders?

Specifically: I have a music torrent with hundreds of folders.  I've downloaded the entire torrent, so on my end there's nothing I "Don't want".  I want to copy these files to an mp3 player, but I don't want to copy the .unwanted.  I also want to keep seeding the torrent.

Alternatively, I could copy the entire torrent folder, and delete .unwanted from the copy.  But I googled methods on doing that, and couldn't understand how to get command prompt to do it.