On the video over lay I actually meant overlaying dynamic text onto video which was wan more of a pain than I ever imagined it could be. As for your other poin

On the video over lay I actually meant overlaying dynamic text onto video which was wan more of a pain than I ever imagined it could be. As for your other points I don't disagree there are other options from the various browsers (Mozilla being the most aggressive) but they aren't part of the standard and will be browser specific. The beauty of Silverlight is that the plugin works in every browser in the same way.