Sam, your right that's not entirely true. However, Internet Explorer 9 and
10 support the H.264 video codec in HTML5 video tags. Internet Explorer 6,
7, and 8 do not support the HTML5 video tag. There is a quicktime plugin
which can be installed, which will allow internet explorer or any other
supported browser to play a quicktime movie. But, nowadays all quicktime
movies are H.264 encoded by default. Why use an old technology to display
these videos? If an end user is running IE6 they have bigger problems than
the quicktime plugin. Installing iTunes on Windows does ask if you want to
install QuickTime, but doesn't just install it for you by default.
Again, you're correct. My statement was not entirely true. I still believe
it is a better idea to embed quicktime movies as HTML5 compatible videos
than as QuickTime embeds. I don't actually have the figures at hand, but
I'm willing to hazard a guess that there are more users running IE9 than
there are running IE8 with the quicktime plugin installed. My opinion
regarding IE 6 and 7 should be eminently clear from this post.