A CD burner can write data to a CD-R or CD-RW disc, while a DVD burner can write data to a DVD-R, DVD+R, DVD-RW, or DVD+RW disc.ĬD/DVD burners are commonly used to create backups of important data, such as photos, documents, and music. CD/DVD burners and emulators are software that is used to write data onto a virtual disc or read a virtual disc.