A regular upload does not allow videos. I tried to embed it but apparently you have to have the video hosted on an external site:
"You may embed media from the following sites: 8tracks; CBS News; CNBC; Cocoperez.com; CollegeHumour; DailyMotion; Dorkly; Ebay Item; ESPN Video; Facebook; fitperez.com; Flickr; FunnyOrDie; FunnyorDie; Gamespot Videos; GameTrailers; Google video; heaven666; IGN; Issuu.com Docs; LiveLeak; MegaVideo; Metacafe; Min.us; MIT World; MixPod; MLG TV; MSNBC; MTV Music Videos; MTV Programming; MTV Trailers; MyVideo.de; NBC Video; PBS Video; perezitos.com; pereztv; Picasa; Playlist.com; reGame; SoundCloud; Splicd.com; teddyhilton.com; theync.com; This American Life; Trailer Addict; Tweets; Twitch.tv; Veoh.com; Viddler; VideoBB; videozer; Vimeo; Wall Street Journal; WeGame; YouClubVideo; YouTube;"
I don't trust most of those sites.