“There are numerous web based services (You Tube, BrightCove,
etc) that convert to, host, deliver Flash Video without requiring
the purchase or use of any commercial or proprietary
technology.“Now, all that said, the Flash Player as a whole is not open
source. There are a number of reasons for this, at least as of
today. 2 primary reasons come to mind right now, but these are not
immutable…”