Cool MP3 WAV Converter - Version 6.4.22 Cool MP3 WAV Converter - Cool MP3 WAV Converter, the fastest MP3/WAV converter, specializes in audio formats conversion between MP3 and WAV. It works stably with the easy-to-use interface. Cool MP3 WAV Converter decode MP3 files quickly and easily to the burnable WAV format. And it converts wav files to MP3 files. Just one click of the mouse.