Watch DVDs with VLC?

Anyone know a way that I can watch DVDs on my computer with VLC? It won't work for some reason, I keep
getting Unable to open 'dvd://D:' and Windows Media Player won't play it for some reason either.

Any other way around that I can get it to work?

view the DVD file and manually select the auto run so it will run. it MIGHT WORK.

Uhh..I don't see no auto run option in the VLC player and I already said I couldn't open up the DVD.

On VLC hit file than open file.

I just did that. I went under dvd and I get "Unable to open 'dvdsimple://D:'"

Isn't VLC suppose to have a built in decoder so I can play DVDs on it?