HD or BR...what did I see??

[ddw]

Sorry if I'm not following protocol. I have a Samsung HDTV with a small Philips HDMI dvd player. Rented the Stones "Shine a Light" from B.B. rentals. The image was amazing...much better than standard digital...I swear it was HD. Yesterday, went out and bought the dvd from B&N, popped it into the machine and ...what a let down???? I called the B&N manager, asking if they had a HD version. He said no but they have a blue ray one. B.B. said they only rent the standard version, no HD, QUESTION: Could a blu ray version play a HD version on my machine...was it just my imagination??? Could I have rented a HD version no longer being rented at B.B.??? I've tried to alter every setting I can on my TV and dvd recorder inorder to try and reproduce the original showing that I viewed...tell me I'm not crazy. Is there a HD version out there?