Disney DVD not playing on computer?

So, the other day I finally got Howl's Moving Castle. Since I was staying in a hotel last night and didn't have access to a normal DVD player, I decided to play it on my laptop. Now, I watch DVDs all the time on my laptop, and I never have any problems. However, when I put the Howl's Moving Castle DVD in, it kept starting and stopping playing until it eventually stopped recognizing the DVD at all. At first I thought it was a scratch on the disc, so we exchanged it. But the second copy did the exact same thing. Today, at home, I put the disc into a normal DVD player, and it played.

Does Disney have some copyright protection crap on their discs that prevents a computer from playing them? I know that some audio CDs had copy prevention things that prevented people from playing them on the computer, but I don't know about DVDs.

Just watched Howl's the other night on my Mac, no problems.

No, this isn't a "go buy a Mac" comment. I have a PC, too.

I watch DVDs on the laptop all the time. Plus, it was only the first disc that wouldn't load. The bonus disc was just fine. :shrug: