Podcast for course did not record video of your laptop projection.
Many HDMI-enabled laptops (including ALL Macbooks) overzealously enable copy-protection on your laptop's video output, even when projecting your own, unprotected content.
To circumvent the overzealous copy-protection, use an HDMI-to-VGA adapter to ensure that video output is recorded.
If you still have questions or need additional assistance, please submit a ticket or call the ITS Service Desk at (858) 246-4357