How should I add the lecture videos on my local / portable device to my SUCourse?
You can add your lecture-related videos from your computer or  portable media to your course with the Medial activity, such as the lecture videos recorded from Zoom.

• Go to course page under the my courses.
• Click on “turn editing on” button 
• Choose “Medial” activity and fill in the necessary information.
• Click on “Add Media” button. From opened page you can click upload button. 
• You can choose relevant videos and add the SUCourse page.
  Click here for more information 

Note: This method should be preferred for SUCourse disk performance.