> > dd if=<your cd device name goes here/> of=MyLovelyMVSImage.iso > > I don't know why "everyone" recommends dd for this purpose. I've been > using the easier cp command and it works perfectly well. dd has extra > options, but they're not needed in this case.
Basically Unix history. There was a time when you really did normally have to use dd for this. Thirty odd years ago anyway 8)