john smith wrote:

Why would a card reader limit ones ability to read a larger capacity card?

Isn't a card reader is a dumb device?

Is it the driver software that is the limiting factor?

I wasn't concerned about the reader. I was concerned about having to buy
another card from Jeppesen. Currently I have two cards so that I am able
to easily burn one at home while the other is in the GPS.

--
Peter