Can I prevent users from downloading a recording?
BigBlueButton does not block recording downloads. Browser controls, network capture, and screen recording each give a determined user a way around any restriction.
BigBlueButton Enhanced viewers can right-click on a playing recording and select Save video as… to download it. BigBlueButton does not block this action.
The download menu is a function of the browser. Disabling it with JavaScript would not stop a determined user from downloading the recording: they could inspect network traffic to find the underlying URL, or screen-record the playback into a separate video file.
For these reasons, we have not added a restriction on Save video as… in BigBlueButton.