Hi there i am new to this technological stuff and am trying to learn, and fast Hoping someone will take time to explain things to me, thank you. My friend managed to transfer all of my games onto my R4 for me so i am not doing any piracy shenanigans. My other daughter would also like her own R4 so i have managed to download all the software etc and duplicated the R4 data, upon doing this i noticed that there are two files of each game, one a .nds file and the other is a .SAV file, Q1)What is the difference between the .nds & .SAV files? Q2)What is the importance of them? (prob answered with the 1st answer??? Some of the games have taken up all the memory on the microsd and i would like to put more on the 2Gb Q3) Can i delete one or the offer .nds or .SAV file to create more more memory? Sorry if these seem like stupid questions and it sounds as though all my questions will be answered with a simple explanation of how these files work, but im totally new to this 'scene'. P.S. i know it makes sense to buy a bigger microsd which i probably will do but i would just like to know all the information i can. Hope someone can help me please.