How to Convert an MP3 to CD Format on a Mac
The advantage of the standard Audio CD format is that you can play it on any device that reads CDs. When you create an Audio CD on a Mac using iTunes, the music player and manager included with Mac OS X, the computer automatically converts the file type, such as MP3, into the Audio CD format. The quality of sound on the CD can only be as good as the quality of the file you put on it. Audio CDs can hold up to 80 minutes of audio.
Things You'll Need
Open iTunes from the Applications folder in the Finder.
Import the MP3s you want to use for your CD if they are not already in your iTunes Library. Go to the File menu and select "Add to Library." Use the pop up window to select the MP3s and press "Choose."
Create a new playlist of MP3s. Enter a name for the playlist in the playlist text box. Drag the desired MP3s to the playlist and drop them there. You can adjust the order of the songs by moving them on the screen with your cursor.
Press the "Burn Disc" icon in the lower right side of the screen.
Set the Disc Format to "Audio CD." If you would like a pause between tracks, select the number of seconds next to "Gap Between Songs."
Press the "Burn" button. Insert a blank CD in the optical drive of your Mac.