Dvd drivers for windows 7

So, your DVD drive isn't showing up at all or it's not able to read any disks?

Standard DVD drives are common and generic, you shouldn't need any special drivers for Windows 7. If the drive isn't seen, it's most probably a config/hardware issue.

Do you mean to say your DVD drives are not recognizing anything? Or is it that your DVD drivers are not being recognized? Please explain 'coz the 2 are completely different.

I don't think it's gonna be the later. So if your drive is not being recognized, either your ODD is faulty, or your SATA/IDE port is. Try using a different port in that case or a different cable/PSU connector.