I am having the M2 memory card which i am using with the Sony Ericsson mobile phone. But i am having the problem with this M2 Memory card of my mobile phone. Whenever I try to copy something on this M2 Memory card the error comes that "the disc is write protected and cannot write anything on it". So how can i remove the Write protection of M2 Memory card? The biggest problem is that the M2 cards are costlier than the other cards in the market and i can use only the M2 card in my mobile which is only made by the Sony. No other company makes the M2 memory cards.