4Videosoft iPhone Ringtone MakerBy 4Videosoft Studio : Movie maker
4Videosoft iPhone Ringtone Maker can helps iPhone users to Convert MP3 to iPhone, iPhone OS 3.0/3.1 Ringtone, even convert any video/audio to iPhone M4R Ringtone, including 3GP, AVI, MKV, RM, MOV, XviD, MPEG, WMV, DivX, ...