Why is understanding video resolution, aspect ratio, and video file size important for optimal video quality? When choosing which resolution to shoot with, figure out where you want your video distributed to and what device your audience will watch your video on to determine which resolutions are supported by specific aspect ratios. The file size also plays a role in a high-quality video. In this clip from our video content course, we share the different types of resolutions, aspect ratios, and file sizes.