Sony DVDRW DRIVE VGP-DDRW4 - Manual (Page 33)

33
Symptom Cause/Remedy
Cannot play
DVD-ROM or
DVD video.
Cannot perform
personal computer
recovery.
Frames are dropped
during DVD playback.
c The region code of the DVD does not match the region
code of the drive. This drive is set to region code 1 (USA,
Canada) at the factory. It can play only discs with the
region codes “1” or “ALL”. For details, see “Notes about
DVD video discs” on page 21.
c If the DVD-ROM is dirty, carefully wipe it with a soft
cloth. For information on disc maintenance, see “Cleaning
the disc” on page 25.
c Condensation may be found on this drive or a disc in the
drive. Remove the disc from the drive and leave it for about
one hour.
c Make sure that the inserted disc is the recovery CD that
came with the personal computer.
c The power management function of the personal computer
may be active.
Check the CPU speed setting. (For details, refer to the
manuals provided with your personal computer.)