Download iTunes (see "Resources") and install it on your computer.
Click on the iTunes icon on your desktop to open the program.
Click on "Edit" at the top of the screen, scroll down and click on "Preferences."
Click on the "Import Settings" button.
Click on the "Import Using" drop-down menu and then click on "MP3 Encoder."
Click on the "OK" button in the "Import Settings" window, then and the "iTunes" window.
Right-click on a file in your "Library," scroll down and click "Create MP3 version."
Download Switch Audio File Converter (see "Resources") and install it on your computer.
Click on the Switch Audio File Converter icon on your desktop to open the program.
Click on the "Add File" button.
Double-click on a song on your computer that you want to convert to MP3.
Click on the "Convert" button located at the lower right corner of the program.
Download Smart Audio Converter (see "Resources") and install it on your computer.
Click on the Smart Audio icon on your desktop to open the program.
Click on the "+" button that reveals the words "Add Files" when you scroll over it.
Click on the song you want to convert to MP3 and then click on the "Open" button.
Click on the "Browse" button, click on the folder you want the converted songs to download to and click on the "OK" button.
Click on the "Convert" button.