Hi Brian,
Thanks for reaching out!
When you add audio and video files to a Storyline 360 project using the 'From file' option, they get added directly to the course you're working on. This means that if you add the media files to your project and delete the original files, the files will remain in the .story file.
If you use the 'Open URL/file' trigger to link to a project file, moving the target files to a different location will cause the triggers to stop working.
Let me know if you have any questions!
