I'm looking for a cheap flash cart and want to know which one is the best out of r4,edge and m3 real. Price wise r4 and edge cheapest Edge has some kind of sticking out Micro SD problem M3 real is the most expensive and from what I've read it isn't just a plug and play card you need to do lots of stuff first. M3 Real comes with a rumble pack which I don't what I would use it for. I heard they all have 100% compatibility but they slow on updating for newer games.if so which one updates fastest? I just care about having 100% compatibility and ds download play and wifi compatible.Also I would prefer if the save files were compatible with the ds-x my old card which failed me. So which should i get?