To set a personalized ringtone on the Motorola Droid, first, open the contacts application. Secondly, tap the contact that you want to set a ringtone to and then press menu. Thirdly, tap options and then ringtone. Finally, select a tone that you want to ring when the contact calls. You can read more on http://www.technipages.com/motorola-droid-set-ringtone-to-a-contact.html.