issue in CD not ejecting at the end of OS installation

[Edison, Arul (GE Healthcare)]

HI,
                I am porting my application from Redhat to Scientific Linux 6.3 
         In Scientific Linux the CD is not ejecting at the end of installation 
though I have added eject at the end of my kick start file.  Can someone point 
how to fix this issue
        
Thanks,
Arul