I am new so excuse my ignorance, could you please put your solution in a step 1, step 2, etc. format.
Susan
Converting .mp4 to .mp3 using iTunes couldn't be simply. All I did was to click on the .mp4 file so that itunes started playing it. Then under the Advanced menu, there is a selection "Convert to mp3", use it.
Also, it is not necessary convert to mp3 if all you want to do is to burn an audio CD, iTunes can burn a playlist directly to a CD. To do this, create a playlist of he tracks you want to burn. Pnce you have created the playlist, the "browse" icon changes to a "burn" icon, click it and you are on your way. You can use the iTunes help with the phrase "burn CD" and that will return topics on how to do this if you need additional help..
BTW, I am using iTunes v6 under OSX 10.4.7. hope that helps.