Cloning conundrums

I've used Clone CD to make a backup of one of my original CDs and been left with three files with the extensions .ccd, .img and .sub. What am I supposed to do with them?

The .ccd file works in a similar fashion to the cue sheets you are probably more familiar with. A .ccd file contains information regarding the logical structure of the disk - it is the file you would open in Clone CD in order to burn the image to a CD-R. When this file is opened, the other two files are automatically processed providing they are stored in the same directory and share the same filename.
The .img, or image file, contains the main channel data of all tracks of the disk, and the .sub file comprises the sub channel data of all the tracks of the disk.

To burn a Clone CD image you would select 'write from file' from the 'file' menu, browse for its accompanying .ccd file and select OK.