Nur kurz zur Aufklärung:
Mastercard ist Mastercard, heißt in D (und glaube nur noch in D) Eurocard, wird aber m.W. auch auf MC umgestellt.
Maestro und Cirrus sind Tochterfirmen (daher auch die fast identen Logos) von Mastercard für die Debitkarten, sind aber nicht untereinander verbandelt. Maestro ist in Europa sehr stark, Cirrus in Nord- und Südamerika wenn ich das richtig mitbekommen habe.
Cirrus ist z.B. auf den österr. Maestro Karten nicht drauf.
Hier die Info von der Mastercard Seite
http://www.mastercard.com/atmlocator/index.jsp?page=faqs :
What is the difference between Maestro, Cirrus, and MasterCard Credit? Can I use any of these at all ATMs?
You can use your MasterCard, Maestro, or Cirrus card to withdraw cash from ATMs. MasterCard, Maestro or Cirrus cards can be used at any ATM which displays the MasterCard, Maestro and/or Cirrus marks in 900,000 ATM locations in 120 countries.
To locate a particular ATM location you can use the ATM locator on the MasterCard Website at the following address;
http://www.mastercard.com/cardholderservices/atm/.
If you encounter difficulties with acceptance of your card at a particular ATM location which carries the MasterCard, Maestro and/or Cirrus marks, we will be glad to investigate providing you give us as much information as possible about the financial institution, your card, and the ATM location such as:
Your financial institution and any brand marks on your card
All brand marks on the ATM
Address information, including City, State and Country
ATM financial institution name (identified on the ATM)
Remember, for further assistance with a MasterCard, Maestro, or Cirrus-related product, please contact a live operator from MasterCard's Global Service Call center at 1-800-MasterCard.