To access CDs/DVDs or flash disks, insert or attach the medium. An icon for the medium is automatically created on the desktop. For many types of removable media, a GNOME Files window pops up automatically. If GNOME Files does not open, double-click the icon for that drive on the desktop to view the contents. In GNOME Files, you will see an item for the medium in the sidebar.
Warning: Unmount to Prevent Data Loss
Do not physically remove flash disks immediately after using them. Even when the system does not indicate that data is being written, the drive may not be finished with a previous operation.
In the sidebar of GNOME Files, click the Eject icon next to the medium to safely remove or unmount the drive.