What I do with these videos is to hover my curser over the little red dot then hold the left mouse button down and drag the dot along the bar If I go slow enough normally my graphics card can keep up with me and show small pictures of the build progress I will sift through a 30 minute video in about 30 seconds and usually get as much out of it as I would have watching the whole thing. if the vid. does show promise I might slide the dot back a little set the play back speed to 2x 1.5 if I want to hear what they are saying watch that short segment then advance to the next promising spot.