My DVDRW drive is not being recognized by my computer. Basically I have my computer set up with a DVDRW on top of a DVD drive. One day my computer stopper recognizing the disc drives properly and it saw the drive on top as a DVD drive and the one on the bottom as a DVD/CDRW. The bottom drive still operates fine as a DVD drive like it should but my DVDRW doesn't work at all. If I put a disk in it, it changes from a DVD to CD drive (according to title). And when I click on the drive from My Computer, it says D:/ is not accessible. Incorrect function.

You may be able to fix it via a driver update.