as i've just learned in my sticky i don't think vimeo allows high definition embedding unless you're a plus member, which i just upgraded to. better than risking youtube flagging it i suppose, but i uploaded there as well
let's compare the two. exact same file uploaded
yt
vimeo
in any case, thanks eric. gfy needed that 2k15 aspect ratio and looks much better with it
edit: i think youtube is outperforming vimeo in video quality
