Are you sure the new DVD drive actually works? It could be defective.
Try temporarily replacing the old drive with the new drive. Make sure the jumper setting on the new drive is the same as the old drive, and then move the data cable from the old drive to the new drive. If the new drive works, then you know it's a configuration issue.
Finally, you might have to reconfigure your DVD player software (or other software that uses the DVD drive) to access the new drive. Some software might not check for changes once it's installed.
Good luck!
Thanks for everyones’ help. Won’t recognize the second drive. Don’t know why. It appears to be working, green light on, slave setting. It just can’t see the DVD in there. May be defective.
You were right. Found another CD-Rom drive in the house and installed it. It works. Thanks to everyone. Free Republic rocks, it absolutely rocks. No other place where I feel like I can talk to family and actually get truthful answers.