I havea five minute video that I want to put on my site.
I have got Adobe Flash CS3 and have been using actionscript3.0.
Its worked pretty much ok on about every PC I've tested it on, but when I tried to browse it on a MAC, it wanted me to install a plugin.
Also, a friend with an Galaxy (Android) looked at my site and his phone wanted a plugin too.
Is there any one-solution-fits-all for every browser/platform?
in short, no.
you will need different ways to present your video even if you want to only target common web browsers and common mobile devices.
here's part 1 of a 4 part explanation: http://tv.adobe.com/watch/adc-presents/videoandhtml5part1understanding html5/