Almost every portable digital music player supports the MP3 audio format. By using the
higher bit rates, for example 256 kbps, you can create an excellent quality audio file using
a much smaller file size than with uncompressed audio.
You can also add metadata to the file so that when the output media file opens in many
players (including iTunes) the common information, such as artist, album, and so on,
Creating MP3 Output Files