I'm not Charles. I'm his wife, Erika. Charles is not tech savvy. I'm not either but better than my husband. Here's the story. We bought a used iBook with Tiger installed. It works great except the cd player doesn't work. Someone gave him a gift of a Snow Leopard OS. Well, since the CD Player is on the fritz, I copied the contents to a Flash drive. Do you think it will work? I'm afraid to try it because I don't want to screw up his computer. He'll get real mad at me if I do. Is there something I should be doing before I click install?