Updated February 09, 2017 Insert a blank recordable CD (CD-R) into the CD-ROM disk drive of your iMac. Locate the files you want to burn to disc. Click and drag the files (or groups of files using “Shift” + “Select”) to the CD-R icon on your iMac’s desktop. Or right-click on individual files and select “Save As” to save them to the CD-R. Click “File” and “Burn Disc.” Title your disc when the window prompt says, “Are you sure you want to burn the contents of “Untitled CD” to a disc?” Select the burn speed in the same window; “8X” is the most reliable speed. Select a burn folder to save the disc to from the same window if you’d like a backup copy. Click “Burn.” Choose “Eject CD” once the CD-R has finished burning, or click and drag the CD-R icon to the trash on your desktop to eject it.
