Im having issues with my cards giving me this error and its not because they are full. i lost the entire first half of the game i shot today due to this and dont really trust my cards atm. any one else with this? if so what did you do?
thanks a lot

If several cards are giving the same error, it's probably not the cards. It's likely the camera.

Just called sandisk and apparently there was a bad batch of IV's. They are sending be 3 new extreme 8gb (60mb/s)to replace the 3 extreme IV 8gb (45mb/s).

btw, it was just my 3 8gb cards(from the same batch), not my 4gb

very impressed with the service...