I'm revisiting Lee's flv control tutorials, and I'm wondering if the on-screen controls (buttons, scrubber, etc) could be invisible until a mouseover, at which time they become visible and actionable.
When it is not necessary to do something, it becomes necessary NOT to do it.
Yes it is very easy to do. Basically you could put an invisible button over your video which would control when to show the controls. The controls would have to be inside a MovieClip so you could show and hide them as a whole.
Or just have a blank first frame of the button, and the actual symbol on the "over" and "down" frames, and of course an area on the "hit" frame. This would work for the buttons (ffwd, rewd, play, pause, etc...). If you wanted to do it with the scrubber and progress bars (but I don't seen the point in an invisible progress bar) you would probably need to play with changing the _alpha values during onMouseOver and such properties.