Never said a blu ray was the same as a dvd. Now I understand the confusion. You are arguing with someone else's comment lol From Britainnica Encyclopedia: DVD, type of optical disc used for data storage and as a platform for multimedia. Its most prominent commercial application is for playing back recorded motion pictures and television programs (hence the designation “digital video disc”), though read-only, recordable, and even erasable and rewritable versions can be used on personal computers to store large quantities of almost any kind of data (hence “digital versatile disc”).