> ... Used to be, back when I
> had dial-up (before I got DSL), I got into the habit of pausing some videos first for
> a couple minutes before playing them. Hardly ever had any buffering issues... Then
> again, I wasn't watching anything in HD or on a large screen.
I've noticed that some services simply don't buffer any more unless they're playing. They'll get a certain amount, and then stop. That may be as little as half a second, though they do continue to download content while playing.