Why Video Quality Drops After Export in DaVinci Resolve

Why does the rendered file look worse than the image in the editor? This lesson walks through H.264, H.265 and DNxHR, the difference between codecs and MP4/MOV containers, automatic Best quality versus setting your own bitrate, and examples at 20 and 80 Mbps. You will see how the settings affect both quality and file size, with practical considerations for delivering to YouTube rather than relying on a single export preset.