Pretty nifty programs. Magic ISO is a trial, although I don't know if it actually cuts off your use after the period ends, but it has slightly limited capabilities. You can copy anything without copy protection to your hard drive as an ISO with it. Magic Disc is freeware, and it acts as virtual CD/DVD drives. You just mount your ISO file and it works like the original CD or DVD. You can have as many virtual drives as you want. It's great for older games like StarCraft.
Ok, I spent a couple hours working with these programs today, and I have 10 virtual drives set up, each with their own ISO. If you have games older than Warcraft 3 I highly recommend using these programs to load them without a cd.