QUOTE(Klyith @ Jul 20 2006, 13:09)

Until then you can get
sox and use it to downmix the audio before you feed it to neroaac.
CODE
sox.exe -c 1 "wavefile.wav" - | neroaacenc.exe -br 96 - "outfile.mp4"
Thanks Ivan, much <3!
Thanks Klyith for the alternative until Nero supports downmixing to mono.
Garf: