It's a common source of ridicule amongst German IT workers (esp. commuters) that our high-speed trains ("ICE") still use disks to transfer seat reservations. An

It's a common source of ridicule amongst German IT workers (esp. commuters) that our high-speed trains ("ICE") still use disks to transfer seat reservations. And it's not that infrequent that you'll hear "seat reservations can't be displayed" being announced at the platform, probably because the train couldn't be anointed by the holy plastic wafer.