In other words, click on the down arrow next to Select:, and click on Podcast Episode. Then click on the Go button to send your request to the server: Blackboard will take you to an Add Podcast Episode page. Enter a Title and a Description in the appropriate fields:
You can create a collection of files or an entire lesson, including cascading style sheets (CSS), zip it into a package, and upload it into Course Files from your computer.
You may want to keep a compressed folder intact when you upload it to your course. For example, if you want to include several images for students to use in a presentation.