Kon writes: "No, as I said the strategy would be MP4+H264+AAC and use javascript rollover that either renders a flash object for decode, or html5 code for browsers capable of decoding the mp4, or a posterframe for incompatible browsers. Standard approach." Of course you will want to deliver the mp4 via a server capable of rendering both segmented streaming as well as http dynamic or rtsp on the fly, such as wowza, erlyvideo, fluendo, etc." Yes, of course--now I see what you mean. I don't suppose Flash Media Server (FMS) will support this, does it? Dan