Although everyone in the world is looking at the MacWorld 2008 and drooling at the MacBook Air, archrival Microsoft also unveiled its future technology Silverlight's creation tool. SilverLight has been touted as an alternative to Flash's flv. Flv or Flash Video is the most popular video streaming technology on the internet with popular sites like YouTube, Google Videos, Metacafe and the rest using it.
The Expression Encoder is used to encode content to Silverlight streaming format and can also generate Windows Media audio and video. It allows different options for encoding in variable bitrates depending upon the Internet broadcasting bandwidth and also allows encoding for Zune.
Supported Operating Systems: Windows Vista; Windows XP Service Pack 2
Processor: 1.0 GHz with MMX or equivalent
Memory: 1GB RAM
Hard Drive: 350 MB
Graphics processor: Microsoft DirectX® 9.0-capable video card- Recommended support for Pixel Shader 2.0, with 256 MB or more of memory to support video preview. For example, ATI Radeon® X300 or NVIDIA® GeForce™ 5600 class equivalent or better.
1024 x 768 monitor resolution with 24-bit color
(Optional) Video encoding hardware acceleration cards to speed up encoding processes
From Microsoft's site:
We are pleased to offer Expression Encoder, formerly Expression Media Encoder, for download. If you are an existing Expression Studio or Expression Media customer, please enter your Expression Media (Windows) product key when prompted during the Expression Encoder installation to activate the software.
If you do not have a product key, you can download Expression Encoder and preview its functionality. This fully functioning version will expire 60 days after installation.
Expression Encoder is an advanced video encoding tool especially suited for generating content that takes full advantage of the rich graphic and interactive capability of Silverlight playback scenarios. You can also generate Windows Media video and audio that is optimized for other Web playback scenarios, or suitable for playback on portable devices, such as Microsoft® Zune™. You may run Expression Encoder in its rich GUI or with the command line.