As much as it sounds like a great idea, I think it would spoil the rose-tinted spectacles effect of memory. You'd be faced with the reality things might not have been as great as you thought.
I think if I watched everything there would certainly be things that make me think "wow, was I that much of a dick?", and hopefully other things that I'd be proud of and had forgotten.
But really I want the ability to better re-visit a fairly small number of specific memories, ones that I'm pretty confident I remember the emotions and what happened well, just wish I could see them better.
