Toshiba U400 User Manual page 138

Problem
Slow performance
DVD Super Multi drive (Supporting DVD±R DL)
For more information, refer to Chapter 4,
Problem
You cannot access a
CD/DVD in the drive
User's Manual
Procedure
Your files may be fragmented. Run disk
Defragmenter to check the condition of your files
and disk. Refer to your operating system
documentation or online help for information on
running disk Defragmenter.
As a last resort, reformat the hard disk. Then,
reload the operating system and other files.
If problems persist, contact your dealer.
Operating
Procedure
Make sure the drive's drawer is securely closed.
Press gently until it clicks into place.
Open the drawer and make sure the CD/DVD is
properly seated. It should lie flat with the label
facing up.
A foreign object in the drawer could block laser
light from reading the CD/DVD. Make sure there
is no obstruction. Remove any foreign object.
Check whether the CD/DVD is dirty. If it is, wipe it
with a clean cloth dipped in water or a neutral
cleaner. Refer to the
Chapter 4, Operating
cleaning.
Troubleshooting
Basics.
Media care section in
Basics, for details on
9-8