This is what I got just now, I got this card Samsung - EVO+ MB-MC256DA 256GB microSDXC UHS-I Class 10 Memory Card came with my phone, I think the max for the Phantom is 128gb? but whatever, I formatted it first on my PC, then my phantom, all was good, filmed about 10 minutes worth of 1080/60 and it came out beautiful. this was yesterday. Today I put it back in and got the message to recommend format, ok I thought, but whatever, I formatted it while it was in the air, the message never went away.? Just looked at my 5 minutes worth of film and its pure stutter, filmed every 4 seconds it looks like. so... whats the deal you think?