silverlight-streaming

Silverlight: Expose audio with specific start and stop times

From an audio-file I want to be able to expose audio on a webpage, but between specific start and stop times. Say I have a audio-file that is 45:30, for example, and I want to expose it for streaming and download between 7:25 and 8:30, but also between 6:20 and 9:27. What do I need in term of special services, Silverlight-controls and ...

Uploading and streaming videos via silverlight.

How would I go about doing the following: I upload a video file via asp.net mvc application. I then stream this video inside a silverlight usercontrol. I'd like to know the libraries and software i'll need. The workflow, and if possible, some code samples / links to samples. Thank you, ...