ERROR: 4ch.wav: found 4 channel(s), require 2 channels.
ERROR: Header of audio file "4ch.wav" is corrupted.
ERROR: evil.toc:46: Cannot determine length of track
FILE "4ch.wav" 0
This makes it impossible to burn 4-channel audio
tracks. Your best bet on reproducing a 4-channel wav,
if you need one, is probably sox. If that's not an
option, you can try grabbing/decoding