Yes but that backs up the entire library or all music, what I want is the option of just backing up all my iTunes Purchases via this menu option but to my Hard-Drive as it's bigger than a DVD. I don't want to back up all my tracks as I have them on CD just my iTunes online purchases.
I've tried, from within iTunes, dragging all the purchased tracks into a finder window of my External Hard Drive but this always seem to fail with this volume of files.