8920A or B reads/writes either DOS or LIF depending on how the card is initialized (formatted).
The card tells the instrument what it is.? File naming may be important for compatibility.
It was pointed out earlier, that a old PCI connector could accept an epson card but the instrument
already does that so maybe there is a way to load it via rs232 without a intermediate cobble.
I'm sure HP wouldn't have told us how.
Found some 1mb Epson (Grid) cards on ebay from zizigulu.? He has a 97% rating so it was a gamble.
The cover was starting to lift near the battery but a couple of dots of contact cement fixed it.
Way more storage than I know what to do with.? May eat a battery quicker for being big.
