Pazera Free MP4 to MP3 Converter 1.2 screenshot Free program that converts MP4, M4A, M4B, M4B and AAC files to MP3 or WAV format. In addition, the program lets you copy (extract) original audio tracks without any loss of quality and split files based on chapters (often found in M4B files) Download Pazera Free MP4 to MP3 Converter 1.2