I want to add something : according to the guys at emutalk.net, we must mount the image with daemon tools 3.29. But in fact, I tried with alcohol120% and the problem is that I can't read the contents of the drive (windows says blah blah...), that's why the guys advice daemon tools 3.29. Actually I ran the emu and I noticed that it works without problem despite of it !!! It is strange, isn't it ? Indeed the Chankast Team has made a very good CD-ROM plugin to read DC images...
Moreover, my image of "Zombie Revenge" gives the same result.