Created video in MM using Windows 8 last year.  Worked great.  Now it tells me the file is corrupt and cannot be opened.  Your support page tells me to put the file on skydrive, set to public, then email you the link.  Only problem is the step that says to send the link to Microsoft has no way to send you the link, so I'm hoping this will work.  If not, please provide an accurate link for Step 4 in your resolution instructions to send the link.

https://skydrive.live.com/redir?resid=9C43C78C8E3234E2!107&authkey=!ABf7Pg5oE6njb64&ithint=file%2c.wlmp