Excellent point GG, and fortunately it is so. I got real daring and used the same process with a thousand or so short video clips (quite a few liften from a jetblast thread) and now have breathing room on C.
The downside is that I deleted the apparent target location (My Music) and now the remaining CDs won't copy. I have already got a work-around in mind involving my fiance's laptop and a 32 gig flash drive, so no immediate worries. Unable to find the spot to tell the software where I want the stuff to go. As I said, not a biggy.
Thanks again to all.