This package installs a TWAIN Data Source (DS) for use with TWAIN-compliant applications for Network Scanning and Image Capture module for direct-attached devices in the Mac OS X system. This installer is distributed on a Disk Copy image (.dmg). Double-click on this file to open Disk Copy, which will mount the image like a CD or hard disk. You can then open the installers on the image. Disk Copy 10.x is included as part of Mac OS X.