In order to record a Google Hangout, the easiest way is to use “Google Hangouts on Air.” Adding the “On Air” feature to a Google Hangout is intended to make your meeting public so that anyone can tune in and watch it — BUT, you can make it private, if you prefer, and still gain the benefit of a downloadable recording. The easiest way to do a Google Hangout On Air is through YouTube.
Google Hangouts
Does Google Hangouts On Air “Make the Cut” as a Professional Webcasting Platform?
With Google Hangouts On Air, you can host and broadcast live discussions and performances to the world. You can also embed the live video player into a webpage with an html code, and later edit and share a copy of the broadcast. At the University of Pennsylvania, I’ve done dozens of complex, large-scale live webcasts using Google Hangouts on Air. Here, I share my findings.