This is not the prettiest way, but it will work.
Before importing the tracks into iTunes, go to the Preferences and click on the Import tab. Change the encoding to MP3.
Import the tracks and they will be as MP3.
Change back to AAC when you are done.
As I said, not pretty but it works
I had some songs on a audio cd (i know that its not mp3).
I copied them to the itunes library.
Now how do i convert them to make them mp3 files...with itunes??
is it possible or should i use sonic record or some other software