But their is no reason that the CD drive should be waking up for something that has nothing to do with it, it's driver(s) are loaded at boot and stay loaded forever since it's a permanent part of the OS. Stuff like flash drives use the user mode driver framework, a whole different system separate from the main parts of the computer.
It is part of the routine. MS built this into the os to be able to load driver via a dc/dvd. lets say you get a new usb device that has no windows drivers preloaded and you have no internet access. You do have the installation cd. it stands to reason that if you insert the cd then plug in the usb device windows will automatically look to the cd for drivers. it is how it is programed. even in Win8 the cd/dvd will cycle when a new device or even an already installed device is plugged in. if drivers are not readily available windows will automatically look to floppy/cd/dvd.
it's not the cd/dvd drivers windows is looking for.
short of modifying the inf files involved with the driver install feature of windows the only solution that I am able to offer is to turn of auto installation of drivers. This could lead to issues later on however as windows will then prompt you as to what driver to use when you attempt to access a device This is a link to How to Disable Automatic Driver Installation In Windows the article is for vista but should work in seven.
Maybe finding an MS engineer would help. I am not comfortable modifying inf files.
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