Burned CD failing

Hello everyone! Here’s the deal. I bough warcraft III the frozen throne and then used undisker to save a .ISO file onto my desktop. I then burned the ISO file onto a burnable cd as a backup. I then ended up using the burned cd to install warcraft, and it worked fine, but when I run warcraft it asks me to insert the disk (which I have lost – been a long time since I played it, and I’ve gotten a new computer. ALl i have is the burnable disk). Is there any way to run warcraft without needing the disk? Or maybe burning the cd again so that it works?

P.S. I used undisker to make a new .iso file on my new computer’s desktop as well.