Only if that is what you want your duplicates to be. We make an exact copy of your master disc so it should be exactly what you want the copies to be. If you want an audio CD that will play back in a standard CD player then you should send us an audio master. If you want a data disc that is readable in a computer then that is what you should send us. We recommend that you check the master before sending it to us. For example, if it is an audio CD we recommend that you listen to the actual master you are sending us all the way through. Any pops, clicks and other defects that are on the master will duplicate on to the copies.