i can assure you that sd cards formatted to fat 32 DO WORK with the N80 i have done this myself with my 2 GB card ! I do have problems with media player & WLAN but other people are having the same problems as i am so this must be phone related not the card.also i was getting these problems when i had the standard 128 MB card installed & formatted to FAT 16 when i first bought the phone hope this helps