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How Did These XMP Files Come?

Discussion in 'Managing your Photos & Video' started by TomBrooklyn, Jun 6, 2012.

  1. TomBrooklyn

    TomBrooklyn Active Member

    Joined:
    Mar 14, 2009
    Messages:
    143
    Location:
    Brooklyn, NY
    Lightroom Experience:
    Beginner
    Primary OS:
    Windows 7 64-bit
    How did all my folders for the year 2009 wind up with XMP files?


    How can I prevent that from happening again?


    Is there any quick way to get rid of these XMP files? Faster than going to every folder and sorting them out for deletion? I have dozens of subfolders in 2009.

    What are they for anyway? Are they like a mini-catalog, but without location and history info?
     
  2. Kiwigeoff

    Kiwigeoff Lightroom Guru Lightroom Guru

    Joined:
    Oct 7, 2007
    Messages:
    4,627
    Location:
    Paradise
    Lightroom Experience:
    Power User
    Primary OS:
    Mac 10.10.x Yosemite
    Lightroom Version:
    5.7
    Tom, it sounds like you have "Autowrite to XMP" turned on in Catalog Settings. XMP files are data files that contain most, but not al,l of the information from the catalog for each raw image file. NDG, TIFF, PSD and jpegs do not have xmp "sidecar" files as their file has a specific section inside the file where the xmp information is stored.
    To be rid of them you can safely delete them in the OS but ensure that you have turned off the autowrite first or new ones will be created. They are not necessary as long as your are backing up your catalog frequently.
    Personally I convert my raws to DNG so I can have the information in the file and no "sidecar xmp" files as well as backing up the catalog - double insurance.
     

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