Lightroom/Camera Raw & DNG: DNG conversion is reconverting even though only raw is checked.

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  • Updated 6 months ago
  • (Edited)
Doesn't finish the files, doesn't delete original, just hangs. I've attempted to run these three or times and it's time to give up. This is broken. Tiresome. I don't know how many open conversations I have here but I'm looking at LR behind and it's sitting at 484 photos where it's been sitting all day. I don't think Adobe got this big like this.
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Ramona Boston

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  • frustrated.

Posted 7 months ago

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Dan Hartford Photo

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It's not clear if you are converting to DNG upon Import, during export or using the menu "library -> convert photo to DNG" however the answer probably doesn't matter? 

First though are the files some other type of RAW file (CR2, NEF, AWR, PSD, TIFF, Etc.) or Jpg?  If the files are Jpg, then there is usually little or no value in converting them to DNG as the data loss has already occurred and converting them to DNG can't get that back but does create a much larger file size anyway.  

Most cases such as what you describe stem from LR running low on memory (RAM).  They have not been very good at either telling you they are low on memory or very good at throttling back what they are doing to consume less memory.  If this is the case, you may want to "quit" or "Shutdown" other applications running on your computer while LR is converting which in a few cases fixes such problems.  However, the best approach is to hand it smaller chunks of files to convert at one time.  Maybe just a few folders at a time.  If that works, I also find it useful to Close LR and Re-open it again between chunks.  I know this shouldn't matter, but at least on Windows (I don't know about Mac's) it seems to help.  I suspect that LR is remiss in releasing memory in certain cases when it is done with a task and it forgets it still has the memory reserved and then tries to get more.  Anyway, see if that gets you through.

Dan
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Ramona Boston

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Thanks Dan, it starts out as converting on import, AWR files, then proceeds to make a mess, converting some, not converting others, converting some twice so I wind up with ding-2 duplicate files  then just quitting in the middle. It's less than 1,000 but it's on an external drive which I believe is the problem in a nutshell. That simply does not work. At this point I'm resigned to this software being a kludge on many things. I manually converted them.
(Edited)
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Dan Hartford Photo

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I'm not really an expert on that technical level, but flaky drives and produce flaky behavior with little more evidence than slow operation in addition to the flaky behavior.  Processes then to hang (or freeze) - sometimes till you reboot but sometimes it springs back to life after many minutes of being frozen (during which time it is trying, waiting, timeing out, trying, waiting, timing out, etc. 

You may want to run ChkDsk (or similar utility) on the external drive to check it's health.  You may also want to see if LR exhibits the same behaviour if you use your internal hard drive instead of the external.  In other words on import use a folder on the internal drive instead of the external drive (you can alsway move the folder later)
   
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Ramona Boston

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An update. The external drive failed and I'm pulling images down from the backup service Backblaze and I've been horrified to find directories with nothing but XMP or JPG files, no DNGs. Not all DNGs were gone but some entire directories of them. I called Adobe, was passed off to a supervisor but realized in all of this that those images are gone. They were only interested in placing blame on anything BUT Lightroom. I suppose the lesson learned here is to periodically check the contents of directories and never buy G-Technology drives. Don't just assume when I'm done with them they will remain untouched.
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Victoria Bampton - Lightroom Queen, Champion

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So sorry to hear you're having such a rough time Ramona. Sadly it does sound like the drive dying was the cause of the problems, rather than Lightroom in this case, but that's really no consolation if you've lost images in the process.
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Ramona Boston

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I'm not sure how a failing hard drive would ONLY select DNG files but ok.
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Victoria Bampton - Lightroom Queen, Champion

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I was thinking more of "Doesn't finish the files, doesn't delete original, just hangs." and "converting some, not converting others, converting some twice"  Trying to run DNG conversion on a flaky drive could have resulted in the DNG's not writing properly, but it still managing to delete the original raws in the process.
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Dan Hartford Photo

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I don't see if you're on a Mac or PC.  But if on a Mac, many people use Time Machine (TM) which (as I understand - I'm a PC person) is quite good at allowing you to, well, go back in time to recover files as they were there in the past or as they were in the past.  It is apparently simple to tell TM to also backup external hard drives, but only some Mac Users do this.  If you had TM backup this drive there may be hope there. 

Windows has something similar albeit less known, less utilized and less convenient called "File History" so perhaps you were one of the few who had it turned on and may be able to find some help there. 

And, as you say you're using Backblaze, I believe that it too has an historical feature that allows you to recover files as they were in the past - even after deletion or several changes and updates.  You may want to check out if older versions of your missing files exist in BackBlaze that are not corrupt.  I'd start with just one image and see if BackBlaze has it from a prior time.  If so, then tell Backblaze recover all your missing images from that date.   I use CrashPlan as my cloud backup tool and it has this feature so as BackBlaze is quite popular I suspect that it has it too.

None of this may help, but may be a ray of hope.

Dan
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Ramona Boston

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I use Time Machine to back up the system OS drive something like every seven minutes. I don't have it for large external drives. That would be called a RAID, redundant array of independent disks, which I had and used for more than a year when I bought a new IMac. I formatted if for exfat in anticipation of the new IMac. The IMac scrambled the drive and that was the start of all of this. I would up buying recoery software to recover about 2/3 of my work from that situation. I had that drive checked and there was no problem with the drive so I used it as a double drive until recently. That's the G-Tech drive that failed. Anyway, I immediately stopped the Backblaze backup when I realized what I saw so I'm slowly recovering at least some of my work from there. Thankfully it's not all on that drive. The point is, I've done due diligence here and  continue to be unconvinced that a failing driver would take ONLY the DNG files, not the XMP or JPGs.