my dvd drives have vanished!

Tech-Archive recommends: Speed Up your PC by fixing your registry

From: psideburns (psideburns_at_discussions.microsoft.com)
Date: 01/24/05 

Date: Mon, 24 Jan 2005 12:56:13 -0800

My dvd-rom and dvd-rw drive have disappeared from my computer and are
inoperable. aunder device driver for these there is a yellow !. Tried to
uninstall and use add hardware wizard but it said the driver was missing or
corrupted( code 39). Tried to restore but it wont complete the process even
though restore points are there. Tried to rollback or update drivers-
unsuccesful. Can't use factory drivers- they're on disk and that wont work.
XP system SP2. Help!