Free M4a to MP3 Converter is a completely free audio converter that will allow you to easily playback any sort of audio file on portable media devices and other standalone media players. It comprises various conversion pairings including an AAC to MP3 converter, an MP4 audio converter and a 3GP audio converter amongst others. If you like to listen to audiobooks on the road, the audio books M4b to MP3 converter is also a welcome feature. Although the software is completely free, it is fully featured, fast and efficient. Output results are accurate and high quality and there is also support for professional quality 320kbps MP3. Additionally, there is a batch processor which allows you to convert multiple audio files automatically. You can use this feature to have entire folders of music files converted without requiring any further intervention.