HP 65 Card writer compatibility testing

[carolinahomes]

(08-16-2023 05:30 PM)John Garza (3665) Wrote:  I've never had a problem with compatibility among multiple machines.
Can your machine read the prerecorded cards as in the Standard Pac?

-J

I have 5 various pre-recorded Pacs and while I have not yet tested every single card (there's about 150 total here), only 1 so far is missing data due to damage. But that test merely has to do with the reader's functionality.
I wish to test the writer's full functionality and so far everything seems to be factory-perfect once again.

My hypothesis is that there are some machines that are not compatible with others. This is the only way I know which to properly test whether it's true or not.