Afaik they're mostly accepted in Europe via their partnership with the payment processing network of Diner's Club (vs. directly seeing a "Discover" sign). Diner

Afaik they're mostly accepted in Europe via their partnership with the payment processing network of Diner's Club (vs. directly seeing a "Discover" sign). Diner's Club is moderately widespread but only in certain market segments, like restaurants and higher-end stores. Not many European ecommerce shops will take Discover or Diner's Club, not even big ones like Amazon [1]. [1] http://www.amazon.co.uk/gp/help/customer/display.html?nodeId=502572 http://www.amazon.co.uk/gp/help/customer/display.html?nodeId... or http://www.amazon.de/gp/help/customer/display.html?nodeId=504930 http://www.amazon.de/gp/help/customer/display.html?nodeId=50...