yep, just go to prefrences BEFORE you plug your ipod in, and change it. then you'll have to manually add new songs to your ipod and MANUALLY disconnect it from your computer, meaning push the little eject button by the ipod tab. it normally ejects automatically when you have it set to update automatically. just like anything else you plug into your usb port, if you don't stop the power to it first, you run the risk of frying it!