I've never had any problem formatting my SD cards in camera but the SD
Association (they maintain the SD Card standards) suggest that you can
get better performance using the SD Formatter 4.0 software for
SD/SDHC/SDXC cards.
It's a free download for Windows & Mac.
https://www.sdcard.org/downloads/formatter_4/
--
Cheers
Brian
++++++++++++++++++++++++++++++++++
Brian Walters
Western Sydney Australia
http://lyons-ryan.org/southernlight/
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