I was thankful my brother came to visit me this week since my cards were full and computer only has 100mb of space on it. He brought me a new 16GB card for my GRD2. It works well, but it seems like as the card fills up the camera takes longer to initialize before it's able to take a picture. Has anyone else noticed a problem like this, or is it a known problem with the GRD? I'm going to have to wait till next week to clear off my machine and empty the card to see if the performance returns to normal. I'm hoping it's not a defective card.