I just borrowed an R4 from one of my friends 'cause his SD card died somehow and I had a spare laying around so I figured I'd give it a try, I've been looking around for a bit but I cannot for the life of me figure out if there's anything special I need to do (like directories / subdirectories / whatnot) to put stuff on my SD card. If someone could give me a short walk through or give me a link of an in depth guide of how to set up the data on my SD card it'd be much appreciated.