Code:
<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" height="100%" version="1.1" viewBox="0 0 584 754" width="100%">
<rect fill="#000007" height="100%" width="584" x="0" y="0"/>
<image height="754" transform="translate(0 0)" width="584" xlink:href="images/9780007322596.jpg"/>
</svg>
The following code confuses Calibre and it thinks it should be rasterizing SVG images and the images come out blank.
The code is from ePub. The LOTR omnibus in ePub is where the code comes from.