Get an external zip drive with a USB cable. They're inexpensive and easy to use. Then if you have a writable CD/DVD drive it is very easy to simply copy multiple zip discs to a single CD-R.
An internal ZIP will be a little faster, but either method is good.
I have an external and internal, but with the advent of pocket drives, they are obsolete to me. I'll likely seel both cheap soon.
You should be able to find them cheap.
Atos