files are over 700mb now what,

ok, so i unrared the files, and the image for soul calibur, metro street car racer and spawn all came in at over 700mb, i used cdi2nero to convert the image to nero , because my cdr is not compatable with games with the first track at 300LBA, only 302LBA, has anybody had this problem before, and if so , how do i make the image smaller to fit on to a 700mb cd
thanks