Yeah, I found that it will reject all Samsung U3 cards I put in it. The Samsung U1 cards I have work just fine. It made me happy that it will take the 256gb Sandisk ultra A1 cards. I can get a full week of driving to and from work on it.Stick most cards in the Thinkware (F770) & they are incompatible (eg: Samsung Pro Endurance 128GB)
A Samsung 128GB card would be overwritten 1-2 times a day (~8h of footage) with a DR900S-2Ch at Extreme.Had a green Samsung 128GB card fail in my DR900S, was starting to re-boot and even worse, the camera would freeze up without any warning or notification. Put a new 128GB card in and no problems (I keep them stocked at my house and carry a spare lower GB so I can replace card in case of accident).
Currently looking for something more durable since I live in the Florida heat and summer is moving in.
Most of the time the SD cards supported are defined by the controller itself. Very basic/old controllers will only support SDHC which can allocate upto 32GB, whereas SDXC (in most BlackVue dashcams) can allocate upto 2TB.I guess I'm just having a hard time wrapping my head around using 256GB and above since the user manual and Blackvue website say the max they recommend is 128GB. But if the general consensus is that 256 is acceptable w/o issues then I'm game. I would assume the process for using the 256+ cards would be the same in the Blackvue.. insert and format using the button hold (5sec) and all is good and not having to format on a computer (which I never do).
I started using memory cards in my drone that were too big and got some strange results... video's cut in odd places, etc., so don't want issues with my DR900 vids.