@Raiker: We only received a 720p version of the keynotes, so what we've posted is the highest quality we have.
@Sam B: I'll take a look at this. I did play it all the way through right after posting and it seemed fine, but you are not the first to point out there is a problem so I'll investigate
@Travis Teague: Not supposed to do that, will investigate.
Thanks for the feedback folks!