![]() ![]() ![]() (SDHC, which uses FAT32, can only record files up to 4 GB.) But that matters only if you generate huge files because you have a very-high-resolution camera (and a sensor to make that resolution worth it), or you shoot hours of video. SDXC cards are formatted in the exFAT file system, which allows for files of virtually unlimited size. There is another difference between the two standards beyond their total capacity. Today memory cells are one-fifth the size and store thousands of times as much data. In the early 2000s, SD cards-which contained memory cells larger than 100 nanometers-could only hold a few megabytes. That's unfortunate, given their high capacities: Theoretically, the new cards could reach 2 terabytes, though now they max out at 256 GB. ![]() You can use SDHC cards in a device that reads the new SDXC cards, but the newer cards aren't backward-compatible. The larger cards fall under the SDXC standard, while cards between 4 and 32 GB follow the older SDHC standard. Your camera probably isn't equipped to read cards larger than 32 gigabytes. Check to see if there is an SDXC logo somewhere near the card reader. Is my 64 GB card bad, or is there a problem with my camera? Answer LemP Volunteer Moderator Replied on JanuMost likely, your card reader cant read SDXC cards, which have capacities from 64GB to 2TB and use exFAT. When I went back to my old 32 GB card, it was fine. Media Platforms Design Team I put a 64 GB memory card in my camera, and when my camera tried to format it, I got an error message. ![]()
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