I just relized that this was asking "How come CD Burning is Illegal" everyone said what was Illegal , nobody really answered his question.
Well...If you could just copy any CD and give it to a freind than that freind isnt going to have to pay for that CD and than the maker of that CD isnt going to make any money for that CD. So if you bought it , and copied it and you gave it 20 freinds than its only been paid for once and the rest are bassiclly stolen. And you know , if the makers of the CDs dont get any money they think "Well people didnt buy this one , must not be good" and they stop selling them and stop making them. Not to mention all their hard work is put to waste. Hope this explains it for yah