Got past the "missing CD/DVD device driver....." error
I have been searching all over for an answer and it seems like the only thing that has been consistently working (and it just worked for me) is to re-download the file from Microsoft. I realize it will take me another 15 minutes to download that whopper of a file but I'm ready for it. Since I am using the 32-bit version, I just re-downloaded it, mounted the ISO file and it worked. (When I say it "worked", I mean I got past that "missing CD/DVD device driver...." error. I'm hoping I get no more errors and just install the OS. (As I write this, the install seems to be going smoothly......knock on wood.)
Some posts I've read were saying to re-burn the DVD at a slower speed (if you were installing from a DVD). Sometimes it works and sometimes it doesn't they say. I, personally, don't buy that solution. It also wastes precious blank DVD's. However, Since I was not about to ruin another DVD, I re-downloaded the file I'm now I'm good.
I hope this helps!