I had this bloody error message on my cybershot DSC-S80 after i had installed a 512Mb magic gate memory stick pro. Initially i was cursing the bandit who had sold it to me on ebay but after doing a google search for the error message i found this website. I was unable to format my memory stick as it was not recognised by the camera. When i connected the camera to my pc via usb with the stick installed again the PC did not recognise the camera. With the memory stick removed however the camera was recognised via usb. I was about to phone Sony and kick off when i read about squeezing the memory stick and rubbing the contacts. I decided to give it a go and when i stuck it back in the camera the error went immediately. Don't ask me why, a gentle squeeze and a rub of the gold contacts seems to have worked. Now when i connect the camera to my pc with card installed it is recognised. I have since formatted the card for good measure.

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