I am using Easy FancyBox on a client site. The fancybox works with the video in FF, Opera, IE9 but not in IE8 (I've not tested in other browsers yet). I've searched the web for answers but the only ones I find are a year or more old. Here is my development site: http://winslowkitchenstudio.com/site/ The video is at the top of the right sidebar.
Easy FancyBox Version 18.104.22.168