Possibly/probably dim question

[janedavitt]

When you import a file into Windows Movie Maker does it take up double space on the hard drive? Is it like storing a duplicate copy of it? Because E has dozens of anime episodes on WMM to save importing them each time she vids and I'm wondering if it's why she's having so many crashes and why the computer is slowing up recently if you ask it to do more than one thing at once (although it's ancient, so there probably isn't a real reason beyond that, and yes, I've done deleting, defragging etc).

Should I tell her to clear the episodes off once she's finished a vid? Would that be a good thing?

And now I want to play hooky from writing and vid...been ages since I did one...