Hi my brothers got a pokemon fire red and leaf green. They are still both worth alot at gamestation, £18 trade in. I am going to trade them in towards a ds lite. I have already bought m3 ds simply and a 2gb micro sd card all I need is a ds. What I am asking is if I sell them will I beable to download the roms to play on my ds for my brother? Does the save function work fine or will I have problems? Also the ds games, do they all work fine as roms and all save properly games like mario bros, brain training etc?