Good question. I see that all the time but I've never seen any data removed.

Maybe someone else could tell me just WHAT data is removed. At any rate, I often pull the card & back it up to a desktop or laptop during the season of either planting or harvest. Just copy data to the computer in whatever file you want. Copy everything on the card.

Maybe a call to the AgLeader folks could give you more info. You might have to leave them a phone # to call back...but they do call back.