Originally posted by maxxxx I don't know if this helps but I have had problems with any SD brand other than Sandisk with Nikon (D7000 and D7100) and Pentax (K30 and K3 ). My compact cameras can take pretty much any brand but the DSLRs seem very picky.
So for me it's only Sandisk now.
Yeah probably me too. Since with my 32GB Sandisk I haven't got any trouble since I bought my first Pentax, a K20D, I think I'll buy another one, but with a faster write/read speed.
Originally posted by Wolfeye I had a similar error with my K-3 and a Transcend 64Gb card yesterday. I shot a bunch of photos, downloaded them onto my computer via a card reader, all went well. Then I was just previewing the images on the card, in the computer, when all of a sudden I got a fatal error message (Windows 8.1) requiring a reboot of the computer. When I put that card back in the K-3 it said "can not write to card" so I figured it needed formatted again - did so, in the K-3, same error. On a lark I put the card in a Canon 70D, formatted it in camera, and it worked fine. Transferred it to the K-3 and voila! It worked absolutely fine.
Seems to me the issue is in Pentax/Ricoh's implementation of formatting.
*update*
Just did the same thing, uploaded images to a computer (this time a Chromebook) and when I put the card back in the K-3, it said "Card is not formatted".
*update 2*
Read a
post on DPReview that helped. Put the card back in the computer, did a "eject" on the card, and now the K-3 recognizes it. How weird.
I'm happy that you were able to resolve it, but I can't even try to "eject" it from my macbook or imac because it won't show up anywhere, not even in Utility Disk. I'll try to borrow another DSLR and see what I can do. Thanks for sharing the link you found