Have a Sony m350. Works fine with Sony Memory Stick Pro 4MB. Sent away for a new, Sony Memory Stick etc...(same) only 8MB.
Camera was off, I put in the stick and when I turned on the camera for the first time with it "Format Error" came on the screen!
There is NOTHING I could find in the manual about formatting the stick.
Where do I go from here? Anyone actually overcome this same issue?