An MP4 is an MP4. Are you asking about how the MP4 plays back?
On a mobile device it will likely just use the built in media player to play the MP4 video. Desktops don't have this function so Connect may use a Flash based player to play the MP4 in the web browser, but it is still just playing the MP4.
]]>is there a way to force MP4 playback in desktop browsers from curriculum?
If I try to play MP4 video in desktop it still uses Flash, however on mobile device it plays MP4 correctly.
Thanks,
igor