Sony PCG-F520 - Manuel (Page 36)

Notebook User Guide $
 Close the tray by pushing it gently.
Be sure to seat the disc firmly over the hub fingers. If you do not seat the disc firmly,
you could damage your CD-ROM drive and you may not be able to open the tray.
When you finish using a disc, wait until the LED indicator light turns off. Then, press
the Eject button to remove the disc.
When the computer is in System Suspend or System Hibernation mode, you cannot
remove a disc. See “Controlling Power Management” in the online document
Customizing Your VAIO® Notebook for more information about System Suspend and
System Hibernation modes.
If the disc does not come out when you press the Eject button, turn off the computer
and insert a thin, pointed object into the manual eject hole.