> I'd also consider ESD to the card ... not as a solution, but
> as a source of problems.

I think the card is fairly well connected in situ. All data and
comms lines have the recommended pull-ups, nothing is floating,
good power supply etc

It seems to me that the card failing twice after about the same
number of reads and then similar behaviour after that first
failure is a big indicator as to the probable quality of the card.

To be honest, my application may be a lot more demanding than
typical but performance does seem to fall short of expectations

Joe


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