Hi scient!Adobe Audition supports it, see here. Just download the 30 day (or something like that) trial here to do converting then uninstall when you're done. Like 90% of conversion apps are crapware. The best by far (but doesn't support acm) is MediaCoder which is free.
Oh you'll need to sign up an account with Adobe. Use something like 10minmail or Bugmenot.
How goes fixing the planescape bugs.
We (your friends at SMAC) have lost contact.
How much is Adobe Audition?
Are we talking < $100?