I’ve bought two Sandisk Extreme 45 MB/s SDXC1 64 GB (from Amazon).
First card (bought some months ago) has been formatted on camera and showed serious lags when browsing on camera between pictures. Seems there’s no impact on shutting speed. Card perfectly read by a Trascend reader USB 3.0/W7 PC.
Second card bought one week ago - immediately formatted on camera and same problems as first appeared.
In addition some of the pictures were not readable both on Camera and PC (first time in my experience - I own dozens of SanDisk SD card all speeds and size.
Is there any know uncompability between these card and Nikon D800? According to the manual SDXC 64 GB UHS-1 is supported.
I’ve to say also that these two cards have a gold label, while a third one - same specs but with the old red/black label - works fine since more than one year.
Thanks for the kind help,