When Using QEMU, how do you access your D: on Windows when you load a Linux Distro. I've seen many posts on how to do it from within a Linux operation system (i.e. -cdrom /dev/hda...), but how do you access your physical CDROM on your PC when inside of the Virtual Machine? I do not want to access my physical hard drive, just the physical CDROM??

Add -monitor stdio to your command line.

Then, in monitor, you can always:

eject cdrom
change cdrom /dev/cdrom

Hey Thanks!!
I happened to just use...:
(While in my Virtual window, pressed ctrl+alt 1 or 2 to get into monitor).
Typed...:
eject cdrom, pressed enter.
change cdrom /dev/cdrom, pressed enter.
And I heard my CDROM firing up!!! Vrrrooommm!!!
(I did not need the other stuff in my batch file (-monitor stdio), it must be built into the program.

Another Question though? How do you use the USB and/or the Hard Drive of the Host operation system through the monitor? Let's say I had an empty ext3 partition sitting out on hda3 of my Host Hard Drive, how could I access that, to let's say copy some files from my virtual Linux Machine. Is that possible when Windows is my Host??

Qemu has Samba support for hosting Windows, but I never tried it.

I have several Debians on Qemu, and access my hard drives via NFS.