ive heard that m3s are painted, so it leaves paint in your gba slot... and that sd slims heart your ds cards, and m3s can break your gba slot because its a bad fit...
is this true? or are these people just trying to make you buy a supercard? i sure hope it isnt... because i really want an m3 slim sd... so i would like to know if it could break my gba slot or anything like that.