to see one frame independently of the next which is slightly out of register. and which gives you the 3D effect. I'd think you'd need an entirely different type of BluRay player with glasses that synchronize with the DVD and player.
Best to address this question to the net which is where you may pick up hints of how this will be managed. IMDb for example.
Rob
hey, i have a ps3, which has a blue ray. i want to buy avatar when it comes out, but is there going to be a blue ray 3d, is this possible, or am i stuck with 3d normal dvd. thanks

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic