MiSTer FPGA Forum

Yeah, I know this headache well. The Analogue consoles and Krikzz Everdrives are at least as picky about SD cards, if not more so. All I can recommend is to stick to name brand cards (Sandisk, Kingston, PNY, etc.) sold by reputable retailers. I've had good results with the TeamGroup branded cards sold by Newegg, and they tend to be slightly cheaper...