Quote Originally Posted by Hillbilly View Post
Cards up to 32Gb are normally formattted as Fat32 Bigger capacity are either NTFS or Exfat and not all devices recognize them.

Depends on what you are using them in whether they will recognize them or not.
By changing the bigger ones to Fat32 they sometimes can be fooled into using the full capacity.

The difference between the two formats is that FAT32 only allows file sizes of up to 4GB and Exfat goes much higher
I understand that, but we are not meant to be fooling the RNS-510, because it is suppose to support higher capacities (or at least it is reported that it does). If the standard for SDXC cards is ExFAT, and if the RNS-510 is suppose to meet that standard, then it should be able to read ExFAT cards up to 2TB. I'll procure a high capacity full size SDXC card and see if that works, and if not, then I will try formatting it to FAT32. Failing that, I'll keep using Bluetooth.