SRS Labs and Microsoft Introduce Silverlight 5.1 Sound Format Support
SRS Labs has announced the creation of full-fledged tools to implement support for 5.1-channel multi-channel audio for video streams in Silverlight and Smooth Streaming .
It is highly likely that the Netflix service, which delivers video content using Silverlight to millions of subscribers, implements support for a new multi-channel audio feature. ')
via engadget.com