What is the optimum length a video should be and what is the maximum file size?
Mark Robertson (MR): My suggestion is that you worry less about the length of a video, and focus most on creating a quality video that is entertaining and engaging. You do want to include any calls to action and your most important message within the first 15 seconds of a video as attention can fall away quickly after a video begins. That being said, I have seen analytics that show users watching long-form video content due to their interest in the subject matter and in the video itself. Keep in mind that Web video is a “lean forward” experience vs. television commercials which are “lean back”. What I mean by this is that Web videos typically are not interrupting a viewer’s experience. In fact, a Web video viewer has deliberately chosen to click play on a video and therefore this viewer is already somewhat interested in watching that video.
