title: Write to MemoryStream from ConnectStream asynchronously
body: <p>I am writting a mp3 player which streams songs from Internet. The problem is that I can't use Seek() method in ConnectStream.
  I thinking maybe it's possible to copy ConnectStream to MemoryStream asynchronously during streaming and use MemoryStream's Seek() method.
  Does anyone has idea is it possible? Or maybe someone knows other way how to do this?
  Thanks.</p>