WAV to MP3 Converter is an easy to use free program for converting WAVE
files (WAV format) to MP3 format. The program can batch process an
unlimited list of files, and convert them to MP3 format. The quality of
the output can be set from 32kbps (low quality, small file) to 320kbps
(high quality, larger file).
Using this program is as easy as
adding the files to be converted (click Add Files button), specifying
output folder and output quality, and clicking Convert button.