I too have a Cyber-shot from Sony, it must be nearing a decade old... in fact I think it IS a decade old now.
Thing just doesn't seem capable of not eating batteries up, even while it is off. Also, the memory cards are INSANELY expensive for "oh yeah here's a 2GB."
But honestly, the pictures it takes are phenomenal, for it being so old and stuff. 5MP I do believe, too.