Import them all into iTunes, right click and select "Convert selection to mp3".
I like iTunes. Try Edit->Show Browswer
Yes, I now know how to import as an mp3 file. What I'm saying is that I have a few hundred albums worth of AAC's (both from me and from others) that I'd like to change into mp3's. How do I do that?
Ah, yes, you have now learned how to
rip CDs to mp3. When will you learn to read?