Shot 196 images a few days ago and the first image was readable but the subsequent files cannot be read by the camera or computer. Curiously they are all about the right filesize for the subject matter I was shooting but no amount of effort so far has managed to coax the images into being viewable. I was able to recover deleted images from the card that were shot on the card almost a year ago so the card is readable but the files are not.
Just wondering if anyone else has run across this sort of problem and whether you found a solution to the problem. In the meantime, I've retired that card but am nervous about the camera.
I'm still using the 16GB XQD card that came with the D4 as my main card - and I've put at least 20K~30K worth of images on it (plus a lot of video), not a single glitch. At least so far.
Could just be a bad card or a card that went bad. I'd get another, shoot the crap out of stuff in my yard, and if it all worked probably wouldn't worry too much (although I'd probably set my CF card to "backup" for a time, just in case).
I've had similar problems and could recover most pictures (see post below).
Since then I have found at least two other fellow D4 shooters on a French forum with similar issues. there might be a link with the fact that we deleted some pictures while we were shooting, but nothing is sure. Statistically speaking, it is a very rare issue, but it seems to be there...
I do reformat before every shoot but if I recall correctly I did delete an image in camera on that day. I'm not sure how many 1000s of images have run through that card but it is many 1000s. 32gb card and it has never given me trouble but it is retired now. Shot the last few days without issue.
One thing to add to the discussion - the files when downloaded off the card all show the expected size but when I ran a cluster by cluster recovery off of the card the files ranged from zero bytes to 21mb and everything in between. It seems the file system on the card is corrupted and that the file table thinks it recorded full sized files when in reality they were all partial files. Two separate utilities had basically the same result regarding the partial files.
MazeRunner wrote:
General rule of thumb: don't delete photos in camera, and to reformat before every shoot.
Haven't had any problems with memory cards following that rule.
But best of luck with yours!
Why not delete photos in camera? Everyone who I've read say that has never been able to prove why it's a bad idea. You trust the camera to take and write the data, format and set up the card, why not also delete the photo?
I'm using the Sony "S" 32GB cards, and so far I've run about 10,000 images thru each card with no problems. Including deleting in camera.
gugs wrote:
I've had similar problems and could recover most pictures (see post below).
Since then I have found at least two other fellow D4 shooters on a French forum with similar issues. there might be a link with the fact that we deleted some pictures while we were shooting, but nothing is sure. Statistically speaking, it is a very rare issue, but it seems to be there...
Failure is expected at some point on all sorts of cards and I've had CF cards fail in other camera bodies. Usually with some sort of error. The particular way this card failed - writing the files and reporting the size as roughly accurate but not even close when examined at the cluster level left me wondering if there might be an issue with the camera more than the card. At a minimum the file table is corrupt but was it due to the camera writing the file or the media attempting to record it. I would have preferred an error rather than what happened. It's my IT background that leaves me curious.
Trey Neal wrote:
Failure is expected at some point on all sorts of cards and I've had CF cards fail in other camera bodies. Usually with some sort of error. The particular way this card failed - writing the files and reporting the size as roughly accurate but not even close when examined at the cluster level left me wondering if there might be an issue with the camera more than the card. At a minimum the file table is corrupt but was it due to the camera writing the file or the media attempting to record it. I would have preferred an error rather than what happened. It's my IT background that leaves me curious....Show more →
I have the same feeling, there is something very wrong with those XQD issues. Read or write errors (card problems) indeed occur all over the place (the actual percentage of defective media is relatively low anyway). This is something different, like no files appearing anymore, some files appearing. I also had another problem more recently: I delete all the files on the XQD, I start shooting, I delete files (again) and an older (deleted) folder reappears. It really seems to me that the camera software to handle XQD is buggy. I never had similar issues with any other cards, the symptoms are quite different. I have been in the software development business for a very long time and this really looks like software/firmware implementation problems, rather than media problems.
One more thing, I have shot thousands of pictures since then on XQD cards (including the one with the problems), no problems anymore (but I never deleted a picture while shooting).
It also crossed my mind that an incompletely seated card might have led to signal degradation in the transfer of data. But that is merely speculation. I might try a controlled test with the suspect card and see if I can reproduce the problem.
