No problem... despite having done tons of video and audio encoding using various tools, I only used mencode for the first time a couple of weeks ago, and then only a couple of times till I found other ways to get the job done using tools I am more familiar with. Even so, I had the exact same problem you did, and scanned this thread too with similar lack of success. Luckily, I started my computing life in the days of DOS (CP/M actually), so I can muck my way around in a command window when I need too.