MP uses MediaInfo to identify the properties of a file. Did you look at the MediaInfo output in the MP log file, or did you use the MediaInfo GUI? If the latter, try the following: enable DEBUG mode in "MP Config", use MP to play a few seconds of the file, then look in the log file for the output from MediaInfo. What does the log file show for the audio properties?I have been encoding DVDs using handbrake 1.2 with 5.1 audio which is confirmed as such by mediainfo. But when I hit the info button in MP it says the audio is 2.0