The Device Manager on your Windows OS should be able to provide the manufacturer and model #. From that, you should be able to find anything available for it on the web.
Edit: On this laptop, the DVD is listed as "slimtype," but searching for the model # reveals it as Philips/Lite-On.
Edit 2: If you're running a desktop and you're familiar with the inner mechanicals, you could always pop the drive out and check the label (assuming that the label is readable).