Toshiba Satellite M40 User Manual page 179

Problem
Some CD/DVDs run
correctly, but others
do not
Hardware and system checklist
Procedure
Open the drawer and make sure the 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. See the Media care
4 for details on cleaning.
The software or hardware configuration may be
causing a problem. Make sure the hardware
configuration matches your software's needs.
Check the CD/DVD's documentation.
Check the type of CD/DVD you are using. The
drive supports:
DVD-ROM: DVD-ROM, DVD-Video
CD-ROM: CD-DA, CD-Text, Photo CD (single/
multi-session), CD-ROM Mode 1,
Mode 2, CD-ROMXA Mode 2
(Form1, Form2), Enhanced CD
(CD-EXTRA), CD-G (Audio CD
only), Addressing Method 2
Check the region code on the DVD. It must
match that on the DVD-ROM drive. Region
codes are listed in the Optical media section in
Chapter 2, The Grand
Contact your dealer if the problems continue.
section in Chapter
Tour.
9-9