Hát pedig az CloneCd image, azzal kellene kiirni:

http://filext.com/detaillist.php?extdetail=IMG

...és itt:

Extension: IMG
Program and/or Extension Function: CloneCd Image
Specific Notes: Main channel data of all tracks of the CD. It is used in conjunction with the .CCD and .SUB files of the same rootname.

...és mint ebből is látható, kell mellé a .ccd és a .sub file is.