Replace the videos with smaller ones

Hello Giovanni,

Thanks for reaching out and sharing what you are working on.

A project file might not immediately shrink in size when you delete a video. Storyline keeps deleted assets temporarily after you delete them in case you need to click Undo to restore them. The good news is your project file will eventually shrink, usually after saving it a couple of times. But you can also get it to shrink right away by saving and closing the project file, then re-opening it and saving it again.