This program can convert MIDI, WAV, and MP3 files to mobile-phone ring tones. You can write your own music in Mobile Music Polyphonic and save to a polyphonic ring-tone format file. The program can save your music into standard MIDI, SP-MIDI, and SMAF (MMF) files. Convert MIDI to MMF, MMF to MIDI, standard MIDI to SP-MIDI, WAV to MMF, MP3 to MMF, and MP3 to a ring-tone file. Version 2.3 may include unspecified updates, enhancements, or bug fixe..