Is there a windows equivalent to the UNIX /dev files?

Archived from groups: microsoft.public.windowsxp.help_and_support (More info?)

I'd like to verify the md5sum of a CD. On unix I can just use the command:

md5sum /dev/cdrom

I have an md5sum program for XP that works just like the UNIX version; i.e.

md5sum <filename>

Is there a way to specify the CD drive like I can on UNIX? (/dev/cdrom)

Alternatively, is there a simply to copy the CD as an ISO image?
Then I can just get the md5sum of the ISO image file.

/dan