Expression Encoder (formerly Expression Media Encoder) is a new compression tool targeting Silverlight, (although its WMV files will play in all the standard players). Beyond being a great WMV encoder, its real killer feature is easy generation of a Silverlight player experience around the media asset, including subtitles/captioning, thumbnail-based visual navigation, etcetera. It's a deep product, and I'm going to be doing a much more in-depth analysis of it here soon.
One important thing to note about Expression Encoder is that it can be used to build the Silverlight player experience around an already encoded WMV file, so it can be used in conjunction with other compression tools.
Expression Encoder is based on the Windows Media Format SDK 11, so all the registry key tweaks I've been discussing on this blog work perfectly with it.
(repost from http://on10.net/Blogs/benwagg/silverlight-expression-encoder-10-released/ )
