I'm basically looking for something that can play/stream a variety of formats if possible (or if not, to have an easy way for non-technies to convert them to the desired format). I'm also looking for something easy to setup - like including a javascript tag at the top of the page and then perhaps using a div, or just 1 line of script code to make it work. If it's flash, then have to be simple to setup too.
Any suggestions? I've never done this sort of thing before. I'm sure it's easy, but I have no idea what are the standard/defacto products so any help would be great.