When creating videos for PresentationTube, resolution and the video dimensions (in pixels) will play a crucial role in the overall quality and appearance of the video on YouTube. YouTube uses a video player that is widescreen format with a 16:9 aspect ratio. So, in order to have you video look its best on YouTube, the video will also need to be widescreen, 16:9. A popular use of PresentationTube is to record PowerPoint presentations to be hosted on PresentationTube. In PresentationTube, slides are displayed either in the standard 4:3 format or 16-9 (wide screen) format. In PresentationTube, no need to adjust the aspect ratio for which the presentation will be displayed at. Just click on the Camera icons at the left-corner in the bottom to change to the format you like.