DVD Drive Not Recognized

So i couldn't load Windows 7 from my LG Supermulti, so i used the clever USB trick to install it, the problem is that even when im in the Windows 7 OS it's still not recognized. I would assume that the problem would be the DVD Drive itself, but i am also running Windows XP and the drive works perfectly. What could be the problem? Do i need to buy a new DVD drive altogether to fix this problem?

The drive is an LG GH20Ns10

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