I have a drive in my machine that Windows 7 lists as a BD-ROM drive. In fact, it lists it twice, along with another DVD RW drive, when in fact I only have one physical optical drive on my machine.

Given that there's no Blu-Ray logo on the drive itself, I'm presuming that it doesn't actually support Blu-Ray. But how can I be sure? And how do I disillusion Windows 7?

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It is probably a virtual drive mounted as a Blu-Ray drive to your system. – Mehper C. Palavuzlar Jun 24 '10 at 10:52
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You could check the validity of the drive by looking in the device manager. Sometimes if you run applicatioins such as Alcohol 120%, daemon tools, power iso and so on they make virtual drives, which might appear as Blu-ray drives.

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Thanks for that prompt: device manager showed that one of the drives is definitely a virtual drive, so I'm guessing the other is too. – Sam Jun 24 '10 at 13:48
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