This is probably me being thick, but I'm struggling to use a couple of
SD memory cards. One is 'standard' size (about an inch square), and the
other is smaller. The second one has an adapter to make it the same
size as the larger one. I also have a USB stick into which either can
be plugged. The problem is that neither PC can see either card, whether
plugged directly in a card socket, or via the USB stick. PCs are W7 and
XP. Am I missing something obvious? Surely the cards don't need
formatting before use? One card is Kingston, so not an unknown back
Do you know for sure that the card reader works? I bought one via mail
order from a computery place and it flatly refused to do anything: the
one I subsequently picked up in a pound shop performs without a murmur
I've tried a few cards in adapters as you describe and found that the
adapters tend to be cheap, shoddy and at best intermittent in their
abililty to "see" the cards. Of the three pieces of cheap carp I have
tried only one adapter worked properly - and even that one failed after
a few insertions.
You could try cleaning the contacts on your cards, they may have picked
up some contamination from the adapter.
I have a Poundland USB card reader with slots for SD and microSD cards.
It'll read microSD cards in the microSD slot, but not in the SD slot with a
passive adaptor. The same microSD+adaptor combo works in every other
machine/camera I've used.
Do the cards work in a camera? Try formatting them in the camera, and
then reading them in the computer.
If they do work, then the problem's with your computer. If they're over
2Gb and it's an oldish computer, then as others have said, they'll be
SDHC, and can't be read by older units. Such as this 5 year old Toshiba
laptop. A new card reader will almost certainly read SDHC cards, I got
mine from PC World for a tenner a year ago, and it reads all known forms
of Flash memory, except the very early ones that emulated a floppy
(SSFDC?) and PCMCIA cards.
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