Hi my memory card is a 1gb micro sd memory card it fits correctly into my phone and appears to be working in a nother so i dont think it is faulty. however my phone the sony ericson k800i doesn't recognise the memory card even though it is inserted correctly. It has the card in it but it just says memory stick not inserted when i try to access it on the phone. I have tried to format the stick and seems to make no difference. I would really appreciate any help on this subject...please thank you x