Audio Convertor Plus 

Audio Convertor Plus is a powerful audio conversion tool. It can batch convert audio files from one format to another.It supports most of the popular audio formats.
audioconvertorplus audioconvertor mp3towav wavtomp3

Powerful Audio Tool 

Powerful Audio Tool is a easy-to-use audio tool that offers audio creating, editing, mixing, effects processing capabilities and convert between digital audio formats. Also it gives an easy way to rip and burn audio CDs.
audioedit audioconvert ripcd bruncd audioeditor