If you have existing files in other formats (like CD rips) and want them in .m4a :
Select a song in your library, then go to File > Convert > Create AAC Version . Quick Tips for M4A Files itunes-m4a-download-blog
Tap the cloud icon to start the download. The file will be saved as an .m4a in your computer's "iTunes Media" folder. 3. Managing and Converting Files If you have existing files in other formats
Since the iTunes Store primarily uses the extension for its music, downloading high-quality, DRM-free audio is a straightforward process. This guide covers how to set up your downloads for the best quality and how to manage those files once they're on your device. 1. Configure iTunes for M4A Downloads 2. Downloading Purchased Music By default
Ensure your download format is set to "High Quality" (256kb/s AAC) . If you have Lossless enabled, some files may download in a different container (like .movpkg ), so switching back to "High Quality" ensures you get a standard .m4a file. 2. Downloading Purchased Music
By default, iTunes downloads music in with an .m4a extension. You can ensure you're getting the best quality (typically 256 kbps ) by checking your preferences. On PC: Go to Edit > Preferences > Downloads . On Mac: Go to Music > Settings > Playback .