Replying to Exporting to an external hard drive? 10/10 for help

hey so i have to go to school in an hour so it would be sick if i could do this before then. i got an iomega 1T external hard drive to hold my video for my collage editing class. it should be super easy but i want all of my itunes to be on there as well for class today so i can go through my songs and find a good one for an edit, but i can not figure out how to get everything from itunes onto the hard drive. in finder i can find my itunes but it drags into the hard drive as a 1mb folder. do i need to compress itunes or what?

thanks ns for any help