Does anyone have any good tricks for downloading WMV videos at faster than real-time? The Stanford Videos come as WMV or Silverlight, and it seems I can't get

Does anyone have any good tricks for downloading WMV videos at faster than real-time? The Stanford Videos come as WMV or Silverlight, and it seems I can't get them to download any faster than real time. VLC has an option to write out to a file as it plays, but even without locally showing the video it doesn't speed up.