Peter H Posted March 31, 2015 Share #1 Posted March 31, 2015 Advertisement (gone after registration) I've been using the same Sandisk Extreme Pro 64 in my M for a few years now, without a problem. I'm usually wary of such large capacity cards, but this one has been a boon and until recently never let me down. But a couple of times recently, after uploading to my iMac using LR, one out of a batch of photos will appear as an old, previously uploaded photo, not the one that I know should be there. I format the card each time I put it back in the camera. Might it just be a case of the card getting old and needing replacing? It doesn't happen often but the prospect of losing an important photo is worrying me. I shall use a different card now anyway, but they're quite expensive things just to chuck away if I don't need to. Link to post Share on other sites More sharing options...
Advertisement Posted March 31, 2015 Posted March 31, 2015 Hi Peter H, Take a look here A Memory Card Question. I'm sure you'll find what you were looking for!
jdlaing Posted March 31, 2015 Share #2 Posted March 31, 2015 I've been using the same Sandisk Extreme Pro 64 in my M for a few years now, without a problem. I'm usually wary of such large capacity cards, but this one has been a boon and until recently never let me down. But a couple of times recently, after uploading to my iMac using LR, one out of a batch of photos will appear as an old, previously uploaded photo, not the one that I know should be there. I format the card each time I put it back in the camera. Might it just be a case of the card getting old and needing replacing? It doesn't happen often but the prospect of losing an important photo is worrying me. I shall use a different card now anyway, but they're quite expensive things just to chuck away if I don't need to. I would say it is time for a new card. At least for the safety factor. Years ago I settled on 16 gig cards for the same reason you feel the large ones should be shred away from. Link to post Share on other sites More sharing options...
pico Posted March 31, 2015 Share #3 Posted March 31, 2015 The card is likely failing. SD cards have a special, supposedly high-quality area that is used to store a list of bad blocks, areas of the card not to be used. Formatting, even in over-write mode does not clean the protected area. If we could see how very much of a new SD card is corrupt we would be appalled. SD cards are manufactured to maximize yield, not quality. Very few cards are ever rejected during manufacture. It is the job of the operating system protocols to make them work, and for the most part it does an amazingly good job. Link to post Share on other sites More sharing options...
wparsonsgisnet Posted March 31, 2015 Share #4 Posted March 31, 2015 It is amazing that we depend on this sort of product. Recently purchased the same card as the OP and it is working fine. Today I bot a second one for safety. Regards to all, Bill Link to post Share on other sites More sharing options...
Peter H Posted March 31, 2015 Author Share #5 Posted March 31, 2015 Thanks everyone. Looks like a new card or two for me. Link to post Share on other sites More sharing options...
Bill W Posted March 31, 2015 Share #6 Posted March 31, 2015 My largest cards are 16 gig. I also have a lot of 8's. They were relatively inexpensive and I bought a lot of them from B&H. Link to post Share on other sites More sharing options...
Exodies Posted March 31, 2015 Share #7 Posted March 31, 2015 Advertisement (gone after registration) It's not the Lightroom bug where it uses an old preview pic is it? Zoom in or go to the develop module and it should rebuild the preview. Link to post Share on other sites More sharing options...
wparsonsgisnet Posted April 1, 2015 Share #8 Posted April 1, 2015 My largest cards are 16 gig. I also have a lot of 8's. They were relatively inexpensive and I bought a lot of them from B&H. I was using 16GB cards as well, so that I wouldn't get too many eggs in one basket, but the Sandisk Extreme 64GB card is so much faster that I don't get so much buffer-full. Shooting movement is all about *Gimme-Now* Link to post Share on other sites More sharing options...
wparsonsgisnet Posted April 1, 2015 Share #9 Posted April 1, 2015 I've been using the same Sandisk Extreme Pro 64 in my M for a few years now, without a problem. .... Sorry about your problem. My surprise is that I am paying $75 for a card that you say is "years old." What did YOU pay for this card? Geez. Link to post Share on other sites More sharing options...
Doug Coulter Posted April 1, 2015 Share #10 Posted April 1, 2015 I've had the same issue a number of times. For me, it was the Lightroom bug which uses and old "preview" in place of the new shot. In each case the new shot is there, Lightroom is just using an old preview. I've also noticed this happening with duplicate file numbers. I have yet to find a fix, but it's become just a mild annoyance at this point. Link to post Share on other sites More sharing options...
Doug Coulter Posted April 1, 2015 Share #11 Posted April 1, 2015 Sorry...that was with multiple cards...and multiple cameras. Link to post Share on other sites More sharing options...
Peter H Posted April 1, 2015 Author Share #12 Posted April 1, 2015 It's not the Lightroom bug where it uses an old preview pic is it? Zoom in or go to the develop module and it should rebuild the preview. I wasn't aware of that problem, and I can't test it because I've deleted the duplicate photos now since the original underlying photos weren't important (fortunately) and I thought I'd lost them anyway. I'll bear this in mind from now on though. Thanks. Link to post Share on other sites More sharing options...
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