PLEASE HELP! Having AUTODUMMY problems, WON'T READ selfboot.ISO, only CDRWIN.iso

I am following the directions in the SOUNDFIX patch that was provided for Sould Calibur. It saysd to apply patch (done) delete Right channel sound files (done) APPLY DUMMY file of size 227242000 ....

How do I do that? The AUTODUMMY software which should let me do this can only insert it into an ISO that CDRWIN made. I tried using the ISO that SELFBOOT.BAT makes and it gets "DIVIDE OVERFLOW: e" error....
any suggestions?