This video explains how Kaltura's My Media and Course Media Gallery works. You should watch this video before uploading videos to Kaltura or before creating your own videos using Kaltura.

My Media is located in Brightspace and it's a repository for all of your videos, which can then be distributed to any of your courses. Every user has a personal, searchable library for viewing and managing private media content. The videos you record using Kaltura will be published to My Media. The Course Media Gallery is a searchable gallery of media content of a particular course. Basically, every video you create for a particular course gets stored here.