This blog shows you how to request for Windows Azure Media Services Preview and create an account through Windows Azure portal.
1. Go to windowsazure.com and obtain a free-trail account or login with your own account.
2. Go to https://account.windowsazure.com/PreviewFeatures and that’s where you could request for feature preview.
3. Click on Try it now showed in the picture above. After clicking it, you will see the following screen. Currently we offer three-months free trail and you could click on complete if you want to give it a try.
Continue reading here.