Can't do it anymore; a while back the existing uploaded videos were even deleted to save server space.
I suppose if you renamed them to an accepted format (like .zip or .jpg, etc) and had small enough files, they'd upload, and then whoever downloads them has to rename them to play them.
Anyone try the new single motor kits? Trying to find info on battery requirements and controller info. These kits look pretty good and interested in maybe picking one up for a conversion.