I agree with your comment on being "focused." In analyzing my own learning preferences, I found it is much easier for me to stay focused if I can speed my way through something. Speed is the key for me, not the format.

For example, if I have the choice to learn the same information via a video or book, I'd opt for the book because I know I can read a lot quicker than the person in the video is going to speak. This helps me to stay focused. On the other hand, if I can speed the video up to 4 or 5 times its normal rate, I would opt for that over the printed page because I can listen faster than I can read. For me, it isn't the format as much as the speed at which I can complete my learning that is important.