Memory drive i have an hp photosmart r707 and when i insert my sandisk memory card it says card has wrong format. i know its not the memory card b/c i bought a new one and it says the same thing.

This has happened to my wife's camera twice now. The solution (I think this is the fix) is to take the card out of the camera and then turn it back on without the card in the camera. Doing this will access the camera's internal memory and at this point you should delete any/all/some of the pictures that you find. After deleting some pics from the camera then take a picture. Now turn the camera off and replace the card. Power on the camera and either format the card or just start taking pictures again. I formatted the this last time since I had already moved the pictures to the P.C. and saved them. Give this a try. It's worked for me and it's free.