Forgive my ignorance but could someone give me a short lesson on the smartcards? Or show me a link to a relevant discussion. I've just upgraded from an MC21 to an MC28 and only have one smartcard. Can you get blank ones and programme them to your PGM or do you have to try and find another PGM that already has 2 cards? Not sure if you lose your one and only card then your PGM is then useless. Any info would be appreciated. Thanks. Only interested in standard cards not HRC.