Sony PCV-R545DS VAIO Computer User Guide (primary manual) User Manual page 27

If a region code warning appears when you are using the DVD
player, it could be that the DVD-ROM you are trying to play is
incompatible with the DVD-ROM drive in your VAIO Digital Studio
Computer. The region code is listed on the disc's packaging. Region
code indicators such as "1" or "ALL" are labeled on some DVDs to
indicate what type of player can play the disc. Unless a "1" or "ALL"
appears on the DVD or on the packaging, you cannot play the disc on
this computer.
If you hear audio but cannot see video, your computer's video
resolution may be set too high. For best results, change the screen
area to 800 x 600 using 16-bit color. To change this setting, click the
My Computer icon on your desktop, click Control Panel, and then
click Display. Click the Settings tab. You can now change the screen
area and color.
If you see video but cannot hear audio, check all of the following:
Make sure your DVD player's mute setting is off. Check the master
volume setting in the audio Mixer. Check the volume settings on your
computer speakers. Check the connections between your speakers
and the computer. Check the Windows
Device Manager to see that the drivers are installed properly.
A dirty or damaged disc may cause the computer to "hang" while it
tries to read the disc. If necessary, reboot the computer, remove the
disc, and then check that it is not dirty or damaged.
When you insert a music CD, the Sony Media Bar™ automatically
launches to play your CD. When the Sony Media Bar is running, the
Microsoft CD Player does not have access to the CD. Close Media Bar to
use the Microsoft CD Player. If you do not hear any music, check all your
volume controls.
Some titles require specific files that are located on the application's
CD-ROM. Insert the disc and try starting the program again.
Check to make sure you inserted the CD-ROM with the label side
facing up.
®
Control Panel/System/