Well, I've just saw this happens over the weekend. Now, I wasn't using the Windows Copy routine but a different app - FastCopy - and the effect was just the same. Changing from Artists to Albums in Theater View took forever. So a couple of thoughts from the top of my head:
- is the database engine inside MC waiting for the HDD activity to reach a certain level?
- even if I use a third party copy app I believe this helps more with the way caching is managed, and at some point you have to use system calls to do what you want (in this case copy) 'cause otherwise you won't get access to resources. So unless MC will run on a different OS, this is something that we have to live with it and work around it.
- can MC be installed with all its stuff somewhere else and not be tied to the C drive? I believe last time I had some success with this idea I had to modify manually some 570 registry entries.