If you work on FCPX you will notice that purple little Library icon...thats the file that tells your computer exactly how to make the edit, from where to get the footage, where to put the fade, colour grade...you get the point. The problem is deleting those files, most of us delete them as they so large, 20 to 200GB depending on your projects within.
Well no more, now you can shrink that file to around 10mb to 1GB and safely store your editable file.
Here's how!