What is WMEncoder???
Well it is a is an easy-to-use, powerful production tool that enables content developers to convert both live and prerecorded audio, video, and computer screen images to Windows Media Format for live and on-demand delivery.

Changes in Current Version:

Capture content with frame-accurate control. Protect live streams and initiate broadcasts. Author for a range of delivery scenarios including MBR streaming and CD/DVD
Create the clearest audio from multichannel to voice-only content. Encode to any level—from HD quality (1080i/1080p) to low data rate screen capture. Fine tune compression using new encoding modes
Extend the Encoder’s functionality. Fully automate the encoding process. Includes 4 new utilities

Download: WMEncoder 9.0 beta


Note: If you install the beta of Windows Media Encoder 9 Series, it will replace your current version of the encoder.