I’m assuming you mean MP4, OGV and WEBM with the different formats to optimize for different devices?
Webflow automaticly creates a banner on Phone devices so that it won’t have to load a big video when not connected to Wifi.
There is no option for uploading multiple file formats at the moment. I actually don’t think this is needed since Webflow already transcodes it to be smaller & completely disables the video on mobile.
Thanks @DharmaNode i guess i was just concerned about cross browser compatibility on different devices. But if the Background Video Widget takes care of that then thats cool, thanks.