I posted a Mag Card Reader program quite some time ago done in PBP at the Melabs website. Download it from ...

http://www.melabs.com/resources/samp...ed/MagCard.txt

Mag Card readers do not conviently output asynchronous serial data that can be read with SERIN. The bit stream is totally alien and SERIN, DEBUGIN, HSERIN etc just don't hit the mark.

Melanie