I'm redesigning my animation portfolio site, and want to make it cross-compatible with iphones and people viewing on computers. http://www.greasypigstudios.com Currently my reels are embedded as h264 quicktimes (.mov's), and most people that have needed to view them (media industry people) have had no trouble. Is it safe to assume that since my audience is able to view embedded h264 quicktimes, I can just go ahead and embed h264 m4v's, so as to make them compatible with mobile Safari as well? What are the odds that someone not on an iphone would have trouble viewing an embedded h264 m4v? My current stopgap solution is detecting if somebody is using an iphone, and redirecting them to the m4v version, but I'd rather not have to keep rendering and uploading two different versions whenever I redo my reel.