This year is the first year that I used my new MacBook Pro and FCPX to created and edit films with my 4th grade class. At the end of the school year I deleted all of my events and projects. After I deleted all of my events and projects, it seems like a lot of my hard drive memory is still being taken up. Is there a way I can make sure that all of the video files on my hard drive are actually deleted? I've heard that FCPX creates copies of the video files...not sure if this is my issue. Thanks in advance for any help..