I downloaded the newExpression Encoder 2 Beta so I could encode some videos for Silverlight Streaming today and noticed a few differences.
I did notice a change to the output aswell which will affect the manifest.xml file. I used to have a BasePlayer.js file but the new version outputs ExpressionPlayer.js instead.
There’s a few cool options around playback parameters so you can control whether to play back automatically etc. Check out the rest of the new feature list here: http://www.microsoft.com/expression/products/download.aspx?key=encoder2beta