Do you mean copying from one cd to another or making an audio cd from mp3's or other audio formats. It isn't hard to do either. have you checked the official Nero website for help.
Yes it's very easy indeed. I managed to do it this morning using Nero. It also automatically converts mp3 to the appropriate files for cd burning. I did not realize this (since I don't do much cd burning), that you should use CD-R disks and not CD-RW. Apparently almost all cd players are able to read CD-R and not CD-RW. Anyway a little tip I picked up from the Nero manuals.