Trying to recover 67's prerecorded magnetic cards

[teenix]

The 67 or 97 does not report a write error, except that if the sense chip data buffer has a problem, so you cannot tell if the data on the card is valid or not.

If it doesn't read from a few different calculators, that are known to read ok, then maybe there is a write problem. The only other practical way to test, is to write from different calculators if available and then read back.

Hmmmm this gives me an idea for the 67 and 97 CPU modules.....

cheers

Tony