Optical drive (CD or DVD) not recognized

This is an classic problem when installing a new optical drive to your system. The reason for its occurrence is that most drives come by default with master device jumper configuration. In such cases if you install the drive on the secondary cable connector, the your PC won’t be able to recognize the newly installed drive. The solution is to set the jumper to cable select (CS) or slave (SL) I personally prefer the second option.