I do remember that there was a post explicitly about this but I judt don't remember where.
Anyway, try booting safe mode, removing the entries of all physical CD/DVD drives in Device Manager and then rebooting in normal mode. Perhaps, Windows will re-detect them. And keep searching for that post. (Damn, I should've made a note, to add it to the FAQ anyway...

)
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Joe Forster/STA
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