privledges error when trying to transfer from iphone to itunes mac

I get the following error when trying to transfer music purchased on my iphone to my MAC. Anyone seen this or know how to fix it?


'Attempting to copy to the disk "Macintosh HD" failed. You do not have enough access privileges for this operation.'

Yes I am logged in to my iMac as the administrator. Also I have this computer authorized with iTunes store. Also I do not get his error when I transfer purchased apps on my iphone. Crazy!