How to disable downloading of audio and video from course pages
In this article, you will learn how to prevent your students from downloading audio and video resources from courses they are enrolled in.
Click your profile picture, then select Settings (1), then click Courses (2) in the left menu sidebar.
Check the box labeled Disable downloading of audio and video from course pages (3).

Click Save (4) to apply your changes.

This way, your students can view the video and audio files, but won't be able to download them.