I googled around and found a lot of people suffered from a problem that meant their DVD-Rom drives stopped playing DVDs, they basically turned into CD-Rom drives. I also faced this problem and just this minute fixed it.
Note: This guide is for Windows (sorry Linux people)
Head into Device Manager
(Right Click My Computer - Properties - Hardware - Device Manager)
Click the + by CD/DVD Drives and UNINSTALL the affected DVD drive.
If it tells you to, restart
The drivers should install again through "Found New Hardware" and you will have DVD support back!
DVD Drive stopped working?
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