What follows is longer than most videos found on blogs. Let's face it, if it's longer than 3 or 4 minutes, it's likely not going to be viewed. Which is a tragedy in the case of the video that follows.
So if you don't have much more than 3 or 4 minutes, fine. Split what follows into the 3 or 4 minutes of time you do have and just do that until you've watched the whole thing.
Just do it. You won't regret it.