Happiness M3U RA to M4A Manager - Version 1.3.83 Happiness M3U RA to M4A Manager is a software utility for converting midi files(.mid,midi,rmi,kar) to chosen audio format (wav,mp3,ogg,wma). Happiness M3U RA to M4A Manager - Conversion is done as fast as possible,and with CD audio sound. midi to mp3,midi to wav,midi to wma,midi to ogg. One of the most featured function of this Audio Converter is to convert MP4 to MP3, M4A to MP3 and AAC to MP3.