Note on archived topics.
10-27-2016 07:24 AM
10-27-2016 08:13 AM
Duo and Duo Pro are memory stick cards, so not technically an SD card. It might be helpful if the model number of the card reader was given. Also more information on the memory sticks invovled.
I'm not an HP employee.
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10-27-2016 11:18 AM
> my sd duo pro is reading fine on it but the second card is sd duo ...
Size (capacity) of each device?
Is the one with a smaller capacity the only one that works?
Have you tried the device in another computer? or in your digital camera?