Word of advice: Write notes down before you hit the Record button. It organizes your thoughts before you present them, and it helps keep track of where you are in the presentation. Time is wasted in this video, which means much time is wasted repeatedly when people try to watch it.
Also you might consider putting the disclaimers at the end. If you must have them at the beginning, at least keep them as short as possible. Try to get to the point of the presentation as soon as possible. The longer it takes to get to the point, the more viewers give up and stop watching before they find out what your point is.