File section example: multiple image representations

Each physical page from the book is represented by three associated content files in the TIFF, JPEG and GIF formats.

<?xml version="1.0" encoding="UTF-8"?>
<mets:mets xmlns:mets="http://www.loc.gov/METS/v2"
 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 xsi:schemaLocation="http://www.loc.gov/METS/v2
   http://www.loc.gov/standards/mets/mets.xsd"
 OBJID="ark:/13030/kt9s2009hz" LABEL="Martial Epigrams">
  ...
  <mets:fileSec>
    <mets:fileGrp USE="MASTER IMAGE">
      <mets:file ID="epi01m" MIMETYPE="image/tiff">
        <mets:FLocat LOCREF="http://www.loc.gov/standards/mets/docgroup/full/01/tif"
          LOCTYPE="URL"/>
      </mets:file>
      <mets:file ID="epi02m" MIMETYPE="image/tiff">
        <mets:FLocat LOCREF="http://www.loc.gov/standards/mets/docgroup/full/02.tif"
          LOCTYPE="URL"/>
      </mets:file>
      <mets:file ID="epi03m" MIMETYPE="image/tiff">
        <mets:FLocat LOCREF="http://www.loc.gov/standards/mets/docgroup/full/03.tif"
          LOCTYPE="URL"/>
      </mets:file>
      <mets:file ID="epi04m" MIMETYPE="image/tiff">
        <mets:FLocat LOCREF="http://www.loc.gov/standards/mets/docgroup/full/04.tif"
          LOCTYPE="URL"/>
      </mets:file> ...
    </mets:fileGrp>
    <mets:fileGrp USE="REFERENCE IMAGE">
      <mets:file ID="epi01r" MIMETYPE="image/jpeg">
        <mets:FLocat LOCREF="http://www.loc.gov/standards/mets/docgroup/jpg/01.jpg"
          LOCTYPE="URL"/>
      </mets:file>
      <mets:file ID="epi02r" MIMETYPE="image/jpeg">
        <mets:FLocat LOCREF="http://www.loc.gov/standards/mets/docgroup/jpg/02.jpg"
          LOCTYPE="URL"/>
      </mets:file>
      <mets:file ID="epi03r" MIMETYPE="image/jpeg">
        <mets:FLocat LOCREF="http://www.loc.gov/standards/mets/docgroup/jpg/03.jpg"
          LOCTYPE="URL"/>
      </mets:file>
      <mets:file ID="epi04r" MIMETYPE="image/jpeg">
        <mets:FLocat LOCREF="http://www.loc.gov/standards/mets/docgroup/jpg/04.jpg"
          LOCTYPE="URL"/>
      </mets:file> ...
    </mets:fileGrp>
    <mets:fileGrp USE="THUMBNAIL IMAGE">
      <mets:file ID="epi01t" MIMETYPE="image/gif">
        <mets:FLocat LOCREF="http://www.loc.gov/standards/mets/docgroup/gif/01.gif"
          LOCTYPE="URL"/>
      </mets:file>
      <mets:file ID="epi02t" MIMETYPE="image/gif">
        <mets:FLocat LOCREF="http://www.loc.gov/standards/mets/docgroup/gif/02.gif"
          LOCTYPE="URL"/>
      </mets:file>
      <mets:file ID="epi03t" MIMETYPE="image/gif">
        <mets:FLocat LOCREF="http://www.loc.gov/standards/mets/docgroup/gif/03.gif"
          LOCTYPE="URL"/>
      </mets:file>
      <mets:file ID="epi04t" MIMETYPE="image/gif">
        <mets:FLocat LOCREF="http://www.loc.gov/standards/mets/docgroup/gif/04.gif"
          LOCTYPE="URL"/>
      </mets:file> ...
    </mets:fileGrp>
  </mets:fileSec>
</mets:mets>