I've used it to do some downmixing of 5.1 multichannel audio to Surround 2ch. It is a great piece of software that should be within any multimedia maven's toolbox.
I'll do an encode from .MNG to MPEG or an Xvid-encoded .AVI to see how it works. The .AVI files produced by the current MAME build are freakishly large since nothing gets compressed. That means I'll be consulting the dox to see how it's done. :-)
--Bekki
Combating functional illiteracy with latex-clad drama since the '80s, because old video games rule!