This was in the current Zen (ISP) newsletter.....
Imagine being able to record any smell - fragrant aroma or foul pong - and play it back later. Engineers in Japan are building an odour recorder capable of doing just that. The device uses electronic noses to analyse an odour, then reproduces it by combining an array of non-toxic chemicals. The system has already recorded and reproduced the smell of peeled oranges and sliced apples - and can even distinguish between Golden Delicious and Granny Smith.
Wonder if it would work for hunters, or would the prey's more acute sense of smell detect that the odour was synthetic?