Lightroom: Broken RAW files

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  • Updated 4 years ago
  • (Edited)
I'm using LR4.1 windows to import RAW pictures from my Canon EOS 5D III through a Trancendend USB3 cardreader and a noname USB2 reader. Allmost every time one or more pictures are broken when precented in LR. I've used different CF and SD cards since it looks like a card error, but it's with same result, so it's not a card issue..
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Jes Eriksen

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  • frustrated

Posted 6 years ago

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jdv, Champion

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Are you going through the same USB port for all these imports?

Try using a different port, and copying them directly to your desktop.
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Jes Eriksen

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I'm not going through the same port and it's happening both on desktop and laptop computer and with both card readers.
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Rob Cole

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Hmmm... different card readers, different ports, different cards, same camera, same software, same results...

Can you process the same raw files from that camera (that fail in Lightroom) with other software? (I mean converting the *raw* data, not just displaying the embedded preview) e.g. DPP.
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Alan Garrett

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It could be a fault with the Camera itself - I've had one RAW file show a similar fault. I've set the camera to write duplicate files to both cards, and the error showed up on the same file on both cards, confirming that the error was with the camera, not my computer or LR.
You can try using Canon's DPP to view one of the corrupted files directly from your card (via the card reader) and also from the camera (connected via a USB cable). If the photo is corrupted when viewing from the camera, then the fault will probably lie with either the camera, or possibly the card itself. If you set your 5DIII to write duplicate entries to both cards, and the error appears on the same file on both cards, then your camera is at fault.
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Jes Eriksen

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Sorry for the long response time.
It's not the camera. I've just taken a wedding with both my cameras EOS 5d mrk II and EOS 5d mrk III and I got broken RAWs from both. This has never happened for my mrk II in LR 3.6 so I don't think this is the issue. It could have been the issue if it only was my new mrk III who made the errors.

I tried deleting the broken RAWs and import again and this time it wasn't broken!

At the wedding I had a EOS 5d classic too and when I imported from that camera I had no problem This was mounted with a 8 Gb Lexar. The others has 32 Gb Trancend and Duracell. Perhaps the size of the cards is a issue here? From the Duracell card I imported 1100 pics and 4 had errors. From the Trancend I imported 500 and 2 had errors. All pictures was imported from my new trancend usb3 card reader - not the old usb2 noname who also gave errors.
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Eric Chan, Camera Raw Engineer

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It sounds like a possible issue with your new reader or the cable itself?
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Jes Eriksen

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I've been using 2 different readers and since it's usb2 and usb3 - 2 different cabels and it's not the usb ports since i've seen it both on laptop and desktop and uses usb2 and 3 ports. The problem came with LR 4 on the old reader. I've never had in LR 3.6. It doesn't sound very likely that both the old and the new reader should malfunktion...

Just to sum up: I've had the problem on 2 different pc's, on 2 different cameras, on different CF cards and on 2 different card readers using different USB ports.

Both pc's are win7. I've never seen it in LR 3.6.
The update path was 3.6 - 4.0 - 4.0 RC 2 - 4.1. The first time I had the problem was in RC with my EOS 5d mrk III I thought it was the card reader and bought a new. At the same time 4.1 was released so I updated, but I still have the problem.

Some more info: On my desktop my RAWs is spread on 3 disks the library in LR is approximatly on 100.000 RAWs. Since I'm a wedding photographer I often import more than 1000 RAWs at one time. I'm regularily running consistency checks and backups on the database.
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Rob Cole

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I doubt the problem is with Lightroom 4.1. Hardware goes bad. (so does software, but if it were a Lightroom problem, probably more people would have complained). The symptoms are characteristic of a hardware problem, e.g. reading the file from the card.
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Jes Eriksen

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So because I'm the only one with this excact problem who has repported it, You'll read it off as Hardware errors?

I'm not saying you are wrong BUT: 2 pc's, 2 card readers, more cards, 2 cameras, different cabels and the RAWs work when i reimport them after deletion AND I never had a issue in LR 3.6. For me it looks a bit odd if all my equipment should fail at the same time. Don't you think?
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Rob Cole

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Maybe the problem is Lightroom 4.1, as it seems to you to be. I'm guessing it's a hardware problem because I've seen it several times before - it *looks* just like a hardware problem. If it is some hardware problem, I'd guess it's one piece, not all. Or could be a hardware driver problem - I really don't know.

Does it always work after deletion and re-importation? Or just sometimes? Are you importing from card when it works, or hard disk at that point?

Is Lr3.6 still installed? Maybe try it again. But definitely try other raw converters when you catch a faulty file - if your theory is correct, and the problem is Lr4, then the other converters won't have a problem with it. If my theory is correct, the other converters will have the same problem. (of course copy file from card to hard disk, to assure all raw converters are working with the same file).

So, my suggestion is, rather than debate the merits of various theories, just trouble-shoot and isolate the culprit instead. You know some things it probably isn't because you've tried different things - maybe next try different software, and if you can find a common hardware interface, that might be worth bypassing as a test too.

I mean, if you've got a better idea, then do that instead. If not, these things might give you something to do. Even if my theory is wrong, and it's a Lr4.1 problem, it won't hurt to have some more data to back your claim.

Reminder: Eric Chan of Adobe has read this thread, and if the group had been discussing such a problem, he probably would have mentioned it.
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Jes Eriksen

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Don't get me wrong I appriciate that you are trying to help.
The LR 3.6 is not installed any more and I can't test my EOS 5D mrk III on that version.

Eric maybe maybe not have mentioned it. He seems busy since he's asking about something I've answered earlier in the tread :-)

Back to basic and still digging...
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Rob Cole

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It wouldn't surprise me if Eric took one look at the image you posted and answered without reading much more.

It has a *very* characteristic look of a problem I have seen several times before - in my own personal experience as well as in various forums.
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Eric Chan, Camera Raw Engineer

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As best as I can tell, a single bit error in the Canon raw file compression stream would result in this type of image. As we have never seen this problem occur when testing Canon raw files on any of our internal test systems, unfortunately I think the bit error is occurring somewhere else on your system. I'll read the thread more carefully to see if I can pick up any more clues
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Eric Chan, Camera Raw Engineer

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The best clue I've seen so far is that, with some of your images that were corrupted, you tried to re-import them again from the card, and this time they weren't corrupted. This suggests the problem is intermittent and likely hardware related. (And yes, it is possible for 2 or more pieces of hardware to be simultaneously fault. More rare, to be sure, but indeed possible.)
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Rafal Siderski

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I had this same problem. Good Raw files after one year start to be like that. I opened backuped LR catalog, and there was everything ok. So i export the original file from this backuped catalog, and replace the file in disk. And everything start to works good again.

I use Lightroom 5.6, so it looks like some problem with lightroom catalog