how to get original clips out of imovie
I'm using Version 10.1.6 of iMovie.
Background: I'm on my third Mac in the last 12 years, and we've gone through a number of cameras, videocameras, and smartphones in that time as well, and so my iMovie library is a tangled mess of wrong dates. I finally have the time to deal with this and I have a strong suspicion that all the updates/migrations/different formats are what have caused the mess.
My movies are also taking up an enormous amount of space on my hard drive.
I no longer want to store video clips in Photos and iMovie, and I want my original clips in ONE single place on my HD, organized by year. I wanted to sort my original raw videos manually using Finder. I have made a set of folders for each of the years I have video clips for.
(Going forward, I want to use iMovie or another editing software for editing only, for one year at a time. Not storage.)
To my question: Up until now I imported my videos from my camera using iMovie. How can I best get my original raw clips back OUT of iMovie? Can I just go via Finder into the iMovie events and Original Media folders and drag-and-drop the original clips into my new file system? Or will I mess up my clips somehow?
I also see that my events folder is at around 193 GB while my iMovie Library is at 168 GB. These are two separate items in my Movies folder. Ultimately I do not really understand how my videos are being stored and I know that is the root of this, so I'd be so grateful if someone can help me understand this.
iMac with Retina 5K display, macOS Sierra (10.12.5)