Windows 7: I can only see mp4 files on XBox360

Hey all,
Can you guys stream any file that's not mp4 to your XBox360 from Windows 7 Beta?

I used to be able to do that on Vista but I have to rename the avi files to mp4 to be able to see it (and that doesn't work all the time).

I like using the Windows Media solution, as opposed to TVersity, because files are automatically available to my 360 when detected in the monitored folder. In TVersity, I almost always have to refresh the library.



Anyone figure out a way around this?

Thanks in advance