You can burn files to a CD or DVD and then use that disc as a backup, send it to friends, or copy the files on it to another machine. Discs you burn on your Mac can also be used on Windows computers and other types of computers. To burn a disc, you need a built-in optical drive or one connected directly to your computer. You cannot burn a disc using a remote optical drive.
Burn a disc in the Finder by dragging files to it, then clicking Burn.