I have received both the m3 GBA expansion pack and the m3 Rumble RAM Pack with my m3 real ds. I only got the GBA expansion at first and relized that the Opera browser willll not work for it so then i ordered the Ruble ram pack seperately, but before the rumble RAM pack came i saw the hack to make the GBA expansion work with the Opera, which i got and it worked. But now I have both and i do a lot emulation of NeoDS and SNES, and soon Genesis as well. SO i want to know What is the difference? Which one has more ram? Which one is better to use for emulators like the NeoDS or Snemulds? which one should i use for opera? PS: Off topic, Thank you in advance for any advice and info. and sorry if this is a stupid question, I am extremely knew to the world of homebrew DS. I just discovered it like a week ago and I stayed up for like 3 days reading all the info i can get on the subject but there is so much to learn and its hard to choose the best flash cart and where to buy from, and where to download software and such. So much terminology to learn its like a new language. and what sites are the best to goto. But man is the world of homebrew amazing i am so excited. Again thank you.