While going through the Galaxy S manual I noticed that mkv video files were supported. I grabbed a backup copy I have of my Avatar Blu-Ray, in mkv format. I chopped it using a muxer to 1gb and transferred it to the phone. I don't remember which specific muxer I used, but it's so that I would t have to re-render the movie. I was floored by how gorgeous the movie looks on the 4' screen. Vibrant colors, no lag during playback and very good details. For some reason the audio is not working but my avi audio playback are nice, especially with the virtual 5.1. I played with the tone controls and the brightness. By far this is my most impressive media moment with any smartphone. What is your most impressive media moment with the device, so far? P.S my Droidx and Evo4g coworkers are jealous. I out performed them in benchmarks and the screen "vibrancy" wins by a mile.