Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Rollerball

I bought the DVD and it doesn't work on my (U.S.)computer DVD player. All my other DVD titles are from Warner Bros. & work fine. This is the only one I bought from MGM and it crashes before the movie starts. I e-mailed MGM about this. They have not answered. WB includes software to make sure their DVD's run fine but I guess MGM can't be bothered.