Bruno Martins Indi <| sep |> Hey , this is a good question . I think it ' s a video , most likely MP 4 format . I don ' t think SONY will go as far as implementing custom format just for a locked file they just use DDS for static wallpaper , for example <| sep |> What if I ' m a fox trapped within a box ? <| sep |> You are asking a stupid question online and getting pissy when people try to help <| sep |> I have no idea . My Linux kernel development expertise is in storage . I know far too little about the network stack internals to speculate on failure modes in it . What I do know from hearing from people who do focus in this area is that there are many surprising ways that things can work for many people yet fail for others . Power management is one example . There was a bug in ath 9 k fixed not that long ago that caused APs to do the wrong thing when power saving support via some 802 . 11 amendment was enabled .