Turn on your PC and install the drivers and applications that came with your new drive. Then test the drive to make sure that it can read standard CD-ROMs and audio CDs and can read and write to both CD-R and CD-RW discs. For CD-RW discs, copy some dummy files to them and try deleting the files. If you connected the CD-RW drive's audio cable to your sound adapter, play an audio CD to test for sound.
If your PC doesn't recognise the drive, turn off the PC and double-check all your connections. You can also select Start-Settings-Control Panel, double-click the System icon, and click the Device Manager tab. If the icon for your new drive is shown with an exclamation point next to it, there might be an internal conflict preventing the drive from working properly. Select Start-Help, type hardware troubleshooter in the search box, and follow the directions. If you still have trouble, contact tech support.