Hard Disk Drive Problems - HP OmniBook XE3 Reference Manual

If you get a Region Code error when playing a DVD movie
DVDs may include regional codes that are embedded into the disc data. These codes
prevent DVD movies from being played in regions of the world that are different
from where they are sold. If you get a Region Code error, you are trying to play a
DVD that is for a different region. Make sure you play a DVD designed for your
region.
If you get a "System Error: Unable to read drive" message when running a CD
program or a movie on the DVD drive
For a single-sided CD or DVD, make sure the disc is placed into the drive with the
label facing up.
Make sure the DVD or CD is clean.
Wait 5 to 10 seconds after closing the DVD tray to give the computer sufficient time
to recognize the CD or DVD.
Restart the system:
1. Remove the CD or DVD.
2. Click Start, Shut Down, Restart.
3. Click OK.
If the DVD movie doesn't fill the screen
On a double-sided DVD, each side may have a different format (standard or
widescreen). In the widescreen format, black bands appear at the top and bottom of
the screen. To view the standard format, flip the disc over and play the other side.
You may also want to test the DVD drive with diagnostics. See "Testing Hardware
Operation."

Hard disk drive problems

If the computer's hard drive doesn't spin
Make sure the computer has power. If necessary, connect the AC adapter, making
sure it is plugged into a power source and into the rear of the computer.
Solving Problems with Your Computer
Troubleshooting Techniques
Reference Guide 97