clipped from: www.iphone-ringtone-maker.us 
This Converter to M4R is easy to use for both veterans and beginners. It allows you to choose the part you want and make it as your ringtone. Free download this M4R Converter, create unique ringtones and make your iPhone different form others.
M4R Converter is currently one of the best software designed for iPhone users. With this smart music converter to M4R format, you can convert almost various kinds of video/audio to M4R iPhone ringtone, and transfer the converted M4R ringtone to iPhone directly without iTunes.