@ehBeth,
You're quite correct ehBeth. As long as the original CD doesn't have a DRM implanted on the discs to protect the songs from being uploaded onto the hard drive, one can burn MP3 onto CDs using iTunes, Microsoft Media Player, Real Player (if anyone actually still uses Real Player), Roxio, etc....
I'm not really sure where the difficulty lies. All of these programs walk the user through some pretty easy steps. Then again one needs to use the proper blank CDs (writable which can only be used once; rewritable; etc...). You can't just put in any old CD and expect to burn a file onto it. It has to be properly formatted.