If you rely on Apple's iTunes for your digital music, it's also straightforward. You begin by making a playlist of your favorite downloaded songs, usually about 16 to 18 will fit on one CD, depending on the quality of the file (the higher the quality, the bigger the file). Don't worry—iTunes does do the math for you since it adds up the running time of each song and displays how much space/time you have left on your CD. (Many blank CDs are 74 minutes in length.)
When you click on your playlist, the "Browse" button turns into "Burn Disc." A click of that and iTunes takes care of the rest.
It's a matter of download, burn and go!