Emulation aside, Copying on the Fly aside and many other things you failed to mention. If all you want is general burning yes Imgburn is free and makes a great free alternative but again they are two different programs that do what many other programs do, it is the user that makes the choice of what his needs are. If your needs are only general burning then Imgburn is for you. Like I said before Imgburn is a great program but these are two completely different programs with uses that benefit some and dont benefit others. They are both great programs .