How to backup my iPhone 4S contacts to a CD?
You can export your contacts from the Contacts app, it will save them as a Address Book Backup file (.abbu). Once you do that, you can drop the file into a burn cd folder and burn the CD. 

File &lt; Export &lt; Contacts Archive
Save as a file that you can easily identify. (Contacts-date.abbu)

This of course only works if you sync your iPhone's contacts to your Address 
Book app.