As the title says, its an old film. Consider that and watch the film in Blu ray, some of the scenes have been polished really well, especially details on the uniforms they're wearing which i have never picked up on in the past with DVD/VHS. Yes some scenes look a little pixelated but you can see with the big action sequences the colours are more vibrant and more defined.
Some say there is no difference between this and the DVD version but i have to differ, i think this is the best we have seen Predator. If this is one of your favourite films and your a big fan of the franchise then go ahead and buy it.