We went to a wedding on Monday. My camera (a Canon Ixus 400) kept telling me "Memory card error". Tried a couple of different cards, tried a couple of different batteries. Same error. Tried formatting the cards. It showed 3.4Mb capacity, despite the cards being 256Mb and 512Mb. Gave error "E500", if I recall correctly.

Probably need new camera.

Recommendations?