There is an interesting article on Magnetic card technology in
Phrack37, I could send it to interested parties. It's about 46k.
Brian Williams
Extropian
Cypherpatriot
"Cryptocosmology: Sufficently advanced comunication is
indistinguishable from noise." --Steve Witham
"Have you ever had your phones tapped by the government? YOU WILL
and the company that'll bring it to you.... AT&T" --James Speth