Just a question: If I encode a .mkv file with 5.1 sound using VisualHub's 5.1 preset, will the resulting file work on a regular stereo system? Currently, I don't have a surround sound/receiver setup, but plan on getting one soon. Yet, I want to encode the .mkvs with 5.1 for the future using VisualHub's 5.1 setting. Anybody know? PS. I'm pretty sure Handbrake makes two different audio tracks, a stereo and 5.1, right? Any chance VisualHub will do this?