Hi Clyde, first off Welcome to Listia!!! Just a quick run through the streaming terminology. Anything listed as HD or HDX is going to be from a Blu Ray. The nice thing about the codes from blu rays is that they actually play on all three formats: SD, HD, & HDX. Another term to watch for is "CODE FROM BLU RAY" in the title. This would also infer that this movie is from a blu ray, lol...