Boot from said DVD drive as a test that it's still a good unit. If you can't boot from a CD/DVD drive, then it is suspect.
1. If it boots. Was the jumper set the same as the old drive?
2. Is there a drive letter?
3. Did you try to boot SAFE MODE and remove all the CD/DVD drives in Device Manager and reboot? This will refresh many settings and helps many.
Best of luck,
I recently purchased a Pioneer DVD-RW DVR 109 (manufactured March 2005) and installed it on my PC. I have 3 operating systems and on each one it will not play or read any CD or DVD whether it is an original or a copy. When my PC boots up it recognizes that I have the Pioneer DVD-RW DVR 109. Prior to installing the Pioneer DVD-RW DVR 109 I had an LG DVD RW and it worked fine. Would this be a firmware problem or something else? Please help.