I think the takeaway here is to test the cards both in a computer to
read/write the entire data area and a more limited test in the camera
since it's also possible there's some sort of incompatibility with the
camera. When formatting on a Windows computer choose the "full format"
rather than "quick format" option. Doing so will read/write the entire
directory and data area and check for errors.
32GB is a pretty large card and I'm wondering if you've ever used 32GB
of any other brand in your cameras. It really shouldn't make a logic
difference once the size is 4GB or greater (the point at which file
format changes from FAT16 to FAT32) but I can envision a possibility
that the camera can't handle the size of the directory for such a large
card. I think the symptoms you describe might well fit that type of
problem... works fine up to a point and then goes bonkers. There may
also be other camera/compatibility problems that I can't think of at the
moment. But if this is the problem you couldn't discover it without
first filling the card full of images. But you can do that by
formatting the card in the camera and then copying enough unique images
to it on the computer to at least equal the numbers you had at the point
you seemed to run into trouble.
If you haven't sent the cards back to Amazon yet try reading them
directly in the computer. If they read properly in the computer then I
would say the cards are OK and the problem resides in the camera. If
they don't read properly, however, the camera is still not absolved
since in its own confusion it may have scrambled the directory.
I only have one Transcend card which is a 16GB SDHC. I've been using it
for about two years. It's a class 10 card, is very fast and has been
perfectly reliable.
On 3/22/2013 9:34 AM, Tina Manley wrote:
> PESO:
>
> Well, we are back from our whilrwind trip to Gibraltar, Morocco, and Spain
> and I'm downloading the photos now. The biggest lesson I learned this trip
> was to never again travel without a computer! I thought for such a short
> trip, I would just take lots of SD cards and my Kindle to check e-mail.
> Big mistake! I had bought 4 32GB Transcend cards and they did NOT work.
> They would work fine for awhile and then get hung up on data transfer for
> hours. I would have to take the battery and card out to get them to work
> again and then half the time it would tell me I had no photos on the card
> when I actually had several hundred. I quit using those and only had my
> old, smaller cards to use. The 32GB cards are going back to Amazon. I
> have no idea what I lost but I think the wedding photos are safe on 4GB
> cards. I missed having the opportunity to download photos and review them
> at night before taking more the next day. My little Acer netbook would not
> have been much larger than the Kindle and I could have used it for
> downloading photos, too. I also missed the security of making two copies
> to keep in different locations which I usually do on trips.
>
> The M9 and MM worked fine even in torrential downpours. I used the 35/1.4,
> 24/2.8, and 90/2.0 far more than any of the other lenses I took. I think I
> could have done fine with just those three.
>
> I also have to catch up on all of the e-mails which were too hard to read
> and answer using the Kindle! I did like it for reading and guidebooks,
> though.
>
> Photos will follow someday!
>
> Tina
>
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