What is the video format of the videos downloaded from xbox live marketplace?

I am going to use this trailer for NCAA Football 07 as my example.
http://www.xbox.com/en-US/live/marketplace/trailers.htm

ASX is not a video format.  If you look in the properties of Windows
Media play while a video is playing on your PC from the xbox live
marketplace it will show something like this:

http://www.xbox.com/NR/rdonlyres/584FC585-310A-4FE9-B3CD-607730E64536/0/vidgttvncaafootball07001hi.asx

An asx file isn't actually a media file.  It does not contain the
video itself.  It is simply a redirector for the streaming of video
from the web.
Read this for more info as ASX files.
http://www.w3schools.com/media/media_windowsformats.asp

This is the contents of the above mentioned file (vidgttvncaafootball07001hi.asx):

<ASX VERSION="3.0">
  <Title>GTTV: NCAA Football 07</Title>
  <Copyright>(c) 2006 Microsoft Corporation</Copyright>
  <Entry>
    <Author>Xbox.com</Author>
    <Title>GTTV: NCAA Football 07</Title>
    <ref href="mms://wm.microsoft.com/ms/xbox/video/ncaafootball07/gttv-ncaafootball07-001-Hi.wmv"
/>
  </Entry>
</ASX>

As you can see the actual file being played is a .wmv file.
http://en.wikipedia.org/wiki/Windows_Media_Video

If you require any further information please post a request for clarification.

---

Clarification of Answer by gregaw-ga on 26 Jul 2006 11:01 PDT

I forgot I wanted to add this link:
http://www.xbox.com/en-US/pcsetup/xboxmediafaq.htm

It contains information on what file types the Xbox 360 itself is
capable of playing:

The following types of media are supported when using Windows Media
Center with the Xbox 360 console:

Video

Windows Media Video (WMV) 7, WMV 8, and WMV 9 
Maximum resolution of 1920x1080 (1080p) 
Windows Media Audio Standard or Windows Media Audio Pro audio
WMV content may be Windows Media DRM-protected 
MPEG-1 with MPEG-1 layer I or II audio 
MPEG-2
Maximum resolution of 1920x1080 (1080i)
AC-3 or MPEG-1 layer I or II audio 
WMV Image 1 (Photo Story 1 & 2), and WMV Image 2 (Photo Story 3)

asx format