Seond that on the unit mix. When I first came to the US I was pretty surprised to see soft drinks sold in 1,5l bottles, whereas milk is sold in 1/4 and 1/2 gal. packs...
After all I find it quite surprising it's possible to play US audio tapes and CDs on European equipment and vice versa, considering how many different TV, radio broadcast,... standards we have around the world...
