Could not move to library message
 

After downloading a song I now get the message "could not move to library". This has never happened before. How can I fix this?

Thanks

This can now happen if your shared folder is write-protected or "busy". Some ideas to try for starts are:
-Check permissions on the Shared folder with Finder->File "Get Info"
-download fewer files simultaneously
-try to avoid hitting the "Refresh" button when the Library->Shared folder is selected.