Mr. Blake is showing us how he uses various features of Screenflow and iMovie 09 for making YouTube videos. He takes us through features of Screenflow which not only includes recording a video but also lets us customize the video wherein you can edit giving various effects to the video with the size or the scale, make changes in the audio, give click effect, change passive things, covered action, add text or other things which also includes media. He also mentions and shows us how to use the major feature of Screenflow (which he uses a lot) the zoom in/out effects. If he is not recording, he is reviewing or boxing or any other thing like that he uses iMovie 09. He just loves iMovie 09. He takes us through various features of the same which gives various options for customizing a video. Then he goes on to explain how to export a video to HD using iMovie 09 as well as Screenflow. He says the videos exported will be of high quality. He also has Final Cut Pro but don't use it much. You can also check out his website BlakesTechBlog.