Generally I prefer to read. I can read faster than some guy can talk, vary my reading speed, and can reread if I find something interesting. Reading is active, it spurs my thought; video is passive, it consumes two senses and quells my thought. To hear and listen, video is okay.
If you want wizbangery, let me read with links - buttons - to turn on and off music samples, not switch to another page or sometube, just play music or sound example. Let me integrate my thought with my hearing. This is not a knock on videos - visuals have their place but often are too distracting (for me) -- this is my view on replacing text with a video.