http://caniuse.com/#search=video http://caniuse.com/#search=video The percentage of users not able to use <video> is roughly equivalent to the percentage of us

http://caniuse.com/#search=video http://caniuse.com/#search=video The percentage of users not able to use <video> is roughly equivalent to the percentage of users running IE8, which is about 20% right now, and probably will stay there in the near future, as XP users cannot upgrade to IE9 (thanks, MS!). The other problem with <video> is that there is still no common format which every browser supports, so even if you would ignore IE8 (or provide a fallback via Flash) you'd still have to encode all videos twice (to H.264 and WebM/VP8). Sad as it is, but Flash for video and animated GIF will stay with us for some years.