4Videosoft Mac iPhone 4 Ringtone Maker

4Videosoft iPhone 4 Ringtone Maker for Mac is one amazing yet easy to use iPhone, iPhone 3GS, iPhone 4, iPhone OS 3.0/3.1 Ringtone Maker for Mac users. It provides the easiest way to convert AVI, MPEG, WMV, MOV, RM, RMVB, MP4 to M4R iPhone 4 Ringtone, along with the function to convert WAV, WMA, RA, M4A, AC3, and MP3 to M4R iPhone 4 Ringtone.