Actually, the browser behavior is all more complicated than this.... the preload attribute is influencing it strongly.... eg, FF4 doesn't show the poster if 'preload' is not set to 'none'.... And I was wrong now that I recheck chrome... it too replaces poster with first frame, but the poster shows up constantly in flickers (eg, during seeking).
> You should see the poster - press play and it goes away and the video > plays. This seems to work fine in FF 3.6 and 4.0 beta for me. If it > doesn't work for you, please report a bug. You have preload set to none in these; if you set to metadata or auto, no poster :-( Monty