Our website provided a free download of XRay 1.1 for Mac. This Mac application is a product of Rainer Brockerhoff. The program lies within System Tools, more precisely File Managers.
From the developer:
XRay is a flexible and powerful "Get Info" program for Mac OS X (10.2 and up). Access via Command-Shift-X, the Finder's contextual menu, icon drag&drop or the Services menu. Will accept third-party plugins for feature expansion.
You may want to check out more Mac applications, such as Disk Xray Lite, Xray Vision or Disk Xray, which might be related to XRay.