If you don't have Chrome installed you can download it from here
This method is very useful if you just want to make a very quick video without requiring any additional software or editing steps. All you need is a laptop or desktop equipped with a webcam and a microphone. If you want to make a polished video for a presentation or an audition it is not the best way.
It is recommended to expand the video to full screen to get a clearer view.
Please note even if you mark your video as private you can still share it in Moodle, it just won't be visible to anyone else in eStream