I wont replace any of my DVDs with Blu Ray movies. And especially with older films (have many from the 50s and 60s) I dont need HD at all. Movies like "To catch a thief" for example really need that worn down look in order to make fun. (My opinion) Otherwise I have bought Cars and Wall-E on BluRay, I didnt buy the DVDs on purpose because I knew they would really profit from the high definition. I think the Bourne trilogy will be my next BluRay buy, just need to find a good price. (the trilogy Blu Ray box set is more exensive than the single disc editions, WTF!?)