Vincent: DVD sales slide, but blu-ray grows

This article talks about DVD sales falling and blu-ray sales growing. DVDs are things that play movies. Blu-ray discs play movies also. You may ask what the difference is. The difference is DVDs aren't HD quality. Blu-ray discs are HD; that means movies look better. This will affect the economy because DVD sales will go down even more and they will become old and no one will make them any more. People want better looking movies because they have HD TVs. I think blu-ray is better-- do you think that also?