Lightroom Classic: Which catalog file(s) to back up?

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DotCom Editor Veteran Member • Posts: 7,653
Lightroom Classic: Which catalog file(s) to back up?
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I'm using LR Classic on a Windows PC. For years, I have backed up the catalog to multiple network, cloud, and USB drives. You can never have too many backups.

In the past it was sufficient to backup only the .lrcat file, as LR would reconstruct everything else.

The newest version appears to be different. In addition to .lrcat, must I also backup .lrcat-data or anything else? I will continue to not backup the .Previewes.lrdata directory, which is currently 18.7 gigabytes.

I did search the forum for an answer, but was unable to locate anything directly on point. Thanks for your replies.

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