The document provides a detailed guide on how to insert and compress videos in Dreamweaver, using a specific example to illustrate width and height ratios based on 16:9 and 4:3 formats. It explains the process of compressing video files using MPEG Streamclip, setting parameters like autoplay and camera controls, and highlights the importance of testing and adjusting video settings for proper display. Additionally, it discusses the relevance of using modern video formats such as MP4 and H.264 for web compatibility, while expressing some frustrations with the Dreamweaver interface and terminology.