I'm a total noob when it comes to converting programs and settings and stuff. Basically, I'm using Automen to convert .mkv files into.avi to use in Sony Vegas. Whenever I click the Encode button, a command prompt comes on for a second then disappears and nothing happens but it only happens with dual-audio mkv. I tried using just regular mkv but it only converts about 1 minute of it and the sound is way off. I don't know if it'll help but here are pics of my settings: