Drives don't see source disk

I have “No country for old men” It plays fine in my DVD player. Neither of my DVD drives see the disk. L.O. combo and Samsung burner. Is this some sort of new copy protection?

Can you see the files from the DVD if you open up Windows Explorer?

Thanks for answering. No I couldn’t. However, after I cleaned the disk the drives saw it, but it’s still a piece of crap. Read errors everywhere.
Thanks again.

You want to watch the movie on your PC or want to create a copy?