Below are links to preview the playback of videos on the site. The first is the box maker .mov file and since I don’t want to publish your video on YouTube with out clearing it with you first I’ve selected a random YouTube video to demonstrate the difference true streaming from YouTube makes on the load time.
NOTE: Streaming from YouTube is, sparing some technicalities, all handled the same way so the sample video is a good expectation of the performance of your video once it’s hosted on YouTube.