

The only time this is an expected behavior is when you shoot bursts. I've had four Canon bodies, ranging from much cheaper than yours to more expensive, and none has had delays writing single files to the cards, even though I always shoot raw, and raw files are much larger.

JPEGs are small files, so the camera should not take much time writing them to the card.

That's all there is too it.Īll that said, this is weird. To format the cards, just go to "format' in the menus and select low level. I have never had a Sandisk card go bad, even after years of use, and the odds of having two defective cards at once are pretty low, but it could happen, particularly if it is the camera that is doing something to them.
