I have decided to store my photos for back-up. I am struggling with file type. Should I store the RAW file that comes from camera or DNG file where all my editing has been stored.

  • how is your editing stored in the DNG? if it's about lightrooms metadata, you can save that as well in an XMP sidecar to your RAW. – ths Jan 20 '15 at 9:21
  • yeah its generated from lightroom. how to export lightroom metadata to XMP – jquery404 Jan 20 '15 at 9:24
  • possible duplicate of Is switching to DNG worthwhile? – Please Read Profile Jan 20 '15 at 14:24

You can save DNG if you want, but you can also save RAW+XMP. (which would take significantly less space than RAW+DNG)

To export your Lightroom adjustments to an XMP sidecar file, either automatically or manually on demand, see here:

1.Choose Edit > Catalog Settings (Windows) or Lightroom > Catalog Settings (Mac OS).
2.Click the Metadata tab, and then do either of the following:
◾ To write adjustments and settings metadata to XMP, select Automatically Write Changes Into XMP.
◾ To write adjustments and settings metadata only to the catalog, deselect Automatically Write Changes Into XMP.

If you don’t write adjustments and settings metadata to XMP automatically, you can select a file and choose Metadata > Save Metadata To File.

Another thing you should back up regularly is your Lightroom catalog, since that contains more than only the adjustments on the images (tags, histories mainly)

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