PowerISO is another awesome free program, I have been using for years. If you have a lot of computer games on CDs, you will probably find this software very helpful.  This software allows you to copy CDs and some DVDs and store them as a file on your computer. You can then play the game on the computer without having the disc, using a virtual cd/dvd drive from PowerISO. You can even have multiple virtual drives to allow you quick access to the discs you use the most. I enjoy the quick access to all of my therapy games (e.g., Earobics & Hearbuilder), without having carry the discs around or worry about them being scratched.  Download it here. Make sure to uncheck all of the extra stuff cnet and PowerISO tries to make you install.