Here is a greatly detailed how-to guide from David Sayed about retrieving your information from Silverlight Streaming by Windows Live and putting it in a Windows Azure blob storage. This should allow you to continue to serve content out of the Microsoft Content Delivery Network (CDN) before SLS is decommissioned.
Main post: https://blogs.msdn.com/david_sayed/archive/2010/01/07/hosting-videos-on-windows-azure.aspx
Current table of content:
- Provisioning Windows Azure
- Setting up Windows Azure for video storage
- Creating and publishing a video in a Silverlight player to a Windows Azure storage account (using Expression Encoder 3)
- Embedding a published video in a blog (using Windows Live Writer)
- How to retrieve content that is stored on Silverlight Streaming by Windows Live