AltoMP3 Gold Updated at June 10, 2010 By AltoMP3 Gold With AltoMP3 Gold, you can convert various audio and video media files to MP3 and WAV format. Such media files include: *wma *w4a, m4a *mp *mp *asf audio files *avi *asf *m4p *wmv *mov video files and divx, XviD movies, etc.