On http://way.fm I have an embedded player that pulls in a youtube video. Next to it I have some thumbnails that open a pop-up window with the youtube video related to that icon.
If you start the one on the homepage, then stop it, then open a pop-up player and start that one, it actually starts the one on the homepage, and tells me you can't connect to youtube twice at a time.
If you reverse the process and start with the pop-up, the pop-up version works fine but the one embedded on the homepage fails.
What gets me is that I'm doing the *exact* same thing on http://wcsg.org, it's the same php codebase generating the players, and that one works fine.
Any ideas?

For multiple players, you need to give each player a unique name/id for the object element:
var sdisciple_laymyburdens = new SWFObject('/includes/player/player.swf',<strong>'mpl1'</strong>,'317','213','9');And make sure that SWFObject is writing the object element to an HTML element with a unique id:
sdisciple_laymyburdens.write(<strong>'player_disciple_laymyburdens1'</strong>);For multiple Youtube videos, you need to use the latest player and the corresponding YouTube proxy yt.swf, which can handle multiple Youtube requests.
Player and Youtube proxy: http://developer.longtailvideo.com/trac/browser/trunk/as3