The video you are going to record will only be accessible to one person (expect if you regenerate a token). Try opening it in a first tab then in a second one to see it action.
Some of our clients use this to build:

• On demand videos behind a pay wall
• P2P only videos
• Video for internal use only
• Whats-app like "view once" video

To learn more, check out the source code on GitHub and read our blog article about private videos.