Click on the pop-out icon (upper-right corner) for higher image quality, or the full-screen icon (lower-right corner) that appears after starting the video.

                [This course seems to be popular, causing Google Drive to temporarily refuse to serve some of the lecture videos.
               If you get an error message that says, "Unable to play video at this time" when you click on Play for a lecture,
               you can instead access the video on my YouTube channel: https://www.youtube.com/user/marclevoy/videos
               Here is a playlist of all 18 lectures, in orderhttps://www.youtube.com/playlist?list=PL7ddpXYvFXspUN0N-gObF1GXoCA-DA-7i
                  If you watch the lectures on YouTube, come back here for the lectures slides, available (as PDF files) on the Course Schedule
                  Also, the videos on this site include some material and sound tracks that are suppressed on YouTube to avoid copyright issues.
               The use of this material in my lectures falls under fair use, but YouTube doesn't have a good mechanism for handling this case.] 

Marc Levoy - Lectures on Digital Photography - Lecture 1 ‎‎‎‎‎‎‎‎(21mar16)‎‎‎‎‎‎‎‎.mp4