How to Copy Files to CDs or DVDs with Windows 8
Close your disc-burning session by ejecting the disc.
When you’re through copying files to the disc, push your drive’s Eject button (or right-click the drive’s icon in File Explorer and choose Eject). Windows 8 closes the session, adding a finishing touch to the disc that lets other PCs read it.
Tip: For more information about Windows 8 and its features, explore Windows 8 For Dummies, available online.