How to Get MP3 From Computer Into iTunesby Paul Ramone
The iTunes application is a popular program developed by Apple for the storing of media files. It also syncs media files with Apple's iPod. If you want to transfer saved MP3 files to iTunes, you can do so with a simple drag-and-drop method. Locate the file, and quickly transfer and convert it to the M4A format so that it is compatible with iTunes.
Open the folder on your computer containing the MP3 file.
Drag the MP3 file from the saved folder into the open iTunes window. When prompted to convert the file to M4A, click "OK." The MP3 file will be converted to M4A and stored in your iTunes Library.