Isorecorder by Alex Feinman
http://isorecorder.alexfeinman.com/isorecorder.htm
Isorecorder is a free tool for Windows XP and Vista that can perform the following transformations:
CD/DVD -> ISO Image
Directory Tree -> ISO Image
ISO Image -> CD/DVD (DVD only on Vista)
Especially the latter is a great equivalent to the ease of use that dd brings on Unix.
I like to just save an ISO image of CDs and trash them. I don’t much like those stacks of never-used driver CDs…
Isorecorder does not mount ISO images as virtual drives.You still need Microsoft’s Virtual CD-ROM Control Panel for Windows XP, which you can download from Microsoft. The only official link to this tool is found in the MSDN FAQ. There is no corresponding page on Microsoft Downloads.