Unless the drive physically scratched the DVD, it’s not corrupted. However, I’ve had a few discs that I’ve stored carefully for decades that just stopped working for no reason. The discs looked flawless with no signs of damage and they refused to work.
What region is the DVD and is your drive set to the same region?
Alternatively, download this DLL file and place it the same directory as your VLC installation. It will then be able to bypass simple region checks but not all.