Do you know if you’re Lightroom Catalog is writing XMP data automatically? An XMP file is a sidecar or additional file that contains the metadata to a raw image. When Lightroom makes changes to a raw file, the raw file itself remains unchanged. A sidecar file is created to tell editing programs what has changed in the image.

“Adobe’s Extensible Metadata Platform (XMP) is a file labeling technology that lets you embed metadata into files themselves during the content creation process.” – Adobe

By default, Lightroom does not automatically generate XMP files….