Is the DNG format less useful now that LR is here?

Hi
I was wondering what other people's thoughts were on the continued usefulness of the DNG format now that we have LR.
Obviously the DNG is still useful if you want to export a RAW image file with all its development settings without using a sidecar file. But is there any reason to convert all your RAW files into DNG files if all of your adjustments (and preview images) are going to be stored in the LR database anyway?
I found that using DNG files in ACR was painful since the updated preview image had to be written back into the DNG file - which added a significant processing delay. I have not yet checked if this is an issue in LR.
Any comments?
Regards, Nigel

Hi Nigel,
You describe your "painful" experience with DNG caused by the preview update in ACR.
Please note that you can customize if ACR writes previews into the DNG file and I agree that if yiu use this option it slows down the update significantly.
But you don't have to. If you use Bridge for example, Bridge takes care of the Previews and you do not need a preview in the DNG
However LR never updates the DNG with previews because the previews are stored in the LR database which gives you nice small DNG files.
But all this has nothing to do with the usefullness of DNG. If you don't find it usefull just don't use it. I personally are very convinced that DNG streamlines my workflow and I admit that I delete my originals and stick totally with DNG and with 3 weeks of LR usage I am even more convinced by my decision

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Is the DNG format less useful now that LR is here?

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