Harald Welte wrote:
So you get either ID0 size, XOR inexpensive XOR freely programmable, but never all three of them.
Another idea could be to remove chip+contacts from an inexpensive AND freely programmable large card, and glue that onto ID0 size plastic.
Somehow dissolve the glue on the big card. Epoxy should be covering the chip so it won't be damaged easily even if the card is in an environment which renders the glue (not epoxy) useless.
//Peter