iTunes won't back up my Purchases to a disk

Hi, I would like to back up my purchased music and t.v. shows to a disk, my dvd/cd drive burner is working perfectly, yet iTunes says , "Disk Burner or Software not found.". What shall I do? I would very much like some help.
Thanks

Hope this helps.

A warning about iTunes, backups, and bought music

That didn't help much, any one else?

You could set up a burn folder and manually drag albums on it and burn using the finder, or use the open source burn app

Mac OS X 10.4 Help: Using a burn folder to burn a CD or DVD

Burn

I would like to but I would much prefer using iTunes, and I would like to burn within iTunes in the future to!

Anyone?