Sony PCG-XG28 Primary User Manual page 50

Double-click in the system task tray.
The "Unplug or Eject" dialog box appears.
In the Unplug or Eject Hardware dialog box, select the appropriate
option, and then click Stop.
Confirm the device and click OK.
A message appears informing you that the device can now be safely
removed from the system.
Slide the RELEASE lever on the bottom of the computer in the
direction of the arrow, and then unplug the DVD-ROM drive from
the computer.