Which DVD for butterfly jizz?

[JohnR]

Can anyone suggest a suitable DVD of butterflies doing their things for a senile, eyesight isn't what it was, old fule. I am finding that I have increasing difficulty in recognising similar colours and need to rely on their jizz, especially with those whites, but a Red Admiral, Peacock and Tortoiseshell also have similarities at 30 yards and I don't want to spend the summer with a pair of binos permanently hanging round my neck.