puredrifting
Major Contributor
Also, totally anectdotal but both expensive ProGrade V60 cards I bought for our XT-3 have gone belly up while our dirt cheap SanDisk Extreme Pro V30s continue to hum along shooting 400Mbps 4K 60p with no problems. Same with our Go Pro Micro SD cards, nobody, even Go Pro, seems to know which micro SD cards are THE cards for shooting with Go Pros, we've had good luck once again with the Sandisk Extreme Pros but also with some much cheaper Samsung cards. Memory cards are a total crap shoot overall, you just have to find some that actually work over a long period of time consistently and the manufacturer's recommendations are very fuzzy about which will do the job.