Examples
Make an image of a floppy disk

dd if=\\.\a: of=c:\temp\disk1.img bs=1440k

Make a disk from an image

dd if=c:\temp\disk1.img of=\\.\a: bs=1440k

Rip an .iso from a CD

dd if=\\?\Device\CdRom0 of=c:\temp\disc1.iso bs=1M

above from:  http://uranus.it.swin.edu.au/~jn/linux/rawwrite/dd.htm

http://uranus.it.swin.edu.au/~jn/linux/rawwrite/dd.htm
