It would so amazing to hear the real Twain.  Obviously everyone has
different moods, but judging from how self-aware Twain was, I doubt he
would've let the opportunity go by to have himself NOT recorded.
Especially since he was keen enough to be filmed, which, when you
think about it, is much more amazing.

I'd rather have the video than the sound, if I had to choose between
the two.  If you slow down the video a lot, it's completely
normal-speed and you can get an idea for how he walked, his style, his
poise.  It's wild.