Converting AAC audio files, the default format of iTunes, to the MP3 format allows you to play music in other applications.
Step 1: Open iTunes Open iTunes, click on iTunes on the top, horizontal menu bar, and then select Preferences.
Step 2: Select import options Select Import Settings from the General Preferences screen.
TIP: Different versions of iTunes may have slightly different options, so look for Import if Import Settings is not visible.
Step 3: Set to MP3 Choose Import Using and change from AAC Encoder to MP3 Encoder using the pull-down menu. Select OK, and again click on OK when you're returned to the General Preferences screen.
Step 4: Select songs to convert Select one or more songs to convert by highlighting them. Some songs purchased from iTunes, such as copy-protected songs, cannot be converted to MP3.
Step 5: Select advanced option Click on Advanced from the top menu. Then choose Create MP3 version. It will create a duplicate MP3 file of the AAC file, leaving you with both files saved on your computer.
FACT: In January 2009, major music labels, along with independent labels, began offering their DRM-free downloads, so the files could be played on a variety of music players.