I found a really good streaming test for Extreme:
Go to YouTube and search for "TRON: LEGACY Official Trailer" This is in HD 1080 and is about 60mb for 2.20min.
http://www.youtube.com/watch?v=L9szn1QQfasand this one "Tron Legacy | Teaser US (2010) "
http://www.youtube.com/watch?v=7_KckcEq0SA&feature=relatedYou should see the Red HQ icon appear when you open it in YouTube app.
Another way to test streaming is by opening a video file from the internet directly in the video player:
Go to
http://www.cinenow.co.uk/Play any of the HD videos there. You will get a message "Complete action using", chose "Video Player" and it will stream it directly to the video player.
My Extreme plays these flawlessly directly from the internet. What about yours?