I just imported my first bigger project. Using the highest quality import, my folder ended up being 87 GB. This is massive to me, I didn't expect it to be that large. How much quality would be lost using the "large" import? And how much smaller will the project be? Also, a question about deleting: Say I choose not to use a clip, or I only use a selection of a clip. What is the best way to delete the files that I don't need anymore(to free up space). deleting the clip within iMovie doesn't delete the original file right?