After I add, or even delete, a video file in Lesson, the file seems to be stored somewhere in Moodle. After deleting it from the Lesson, then re=adding it, I get a message that it's already in Moodle. I think somewhere, embedded. What is Moodle doing with the files?
Hi,
the video added through media button appear among embedded files of the lesson web-page.
If you delete the video from lesson web-page, you can re-add it throug adding link - embedded video file.