Where do the imported clip files go to?

Question

I recently uploaded something into iMovie HD from my camcorder, all the clips appeared in the imovie panel as they should, but I don't want to take up too much of my hard drive space, so I dragged and dropped the files into my external hard drive, all the files went as they are supposed to, I then selected all of the panel clips and hit delete, to "cut" them. But it looks like they are still taking up space on my internal hard drive, so I am wondering where do the files go, I can't seem to find them, I want to throw them away permanently in the trash, but am unable to do so, and it is currently taking up space on the hard drive.
Thanks in advance for the help

Answer 1

I can't remember for sure, but I think iMovie HD (version 5) is the same as version 6 in that it is nondestructive. When you delete clips in iMovie, iMovie still saves the clip in its project files. You can see these clips in the project file, but I don't remember how to access it in iM5. (In iM6, you control click on the iMovie icon and then select 'Show package contents' but I think iM5 was different...maybe more direct. Perhaps someone still using iM5 can advise.
You can create, import and edit iMovies on a properly formatted external drive, but the iMovie application itself must remain on your computer's hard drive.