Echo360+ allows you to download lectures in.mp4 format and to browse lecture time-lines in a few different ways. These are:

Download lectures as a simple.mp4 file. Download lectures as a.mp4 file that includes a PDF for each lecture. Download the actual PDF for each lecture (with bookmarks to the relevant sections). Download the HTML5 version of the lecture, which includes the PDF and video (with bookmarks to the relevant sections).

Echo360+ does not require any additional installations or plugins to function properly. Use the extension responsibly.