Previously had also read about various problems with Nokia mobiles and the map. Either EM refers the map now from another manufacturer or the user information simply is not enough before. One must at N-Gage just not make the mistake to format the card outside of the phone. After that, they will never be recognized by the N-Gage and other Nokia mobiles probably with a few exceptions again. In my 245 MB are displayed formatted. For this price and performance 5 star justified.