On Sat, 2005-06-04 at 09:13 -0400, Lamar Owen wrote:
Also, you would be better off using readcd instead of dd; dd is fairly dumb about error handling, but readcd knows how to deal with it.
Ditto. One thing non-Linux users also didn't know is that the way "dd" works on Linux is pretty much Linux-only (not sure about BSD).
I.e., a "true" dd of a CD/DVD media would yank in _all bits. On Linux, when you run a dd on a CD/DVD media, it looks for the first ISO9660 Yellow Book (data) track and yanks that, and not the entire disc.
What we call an ISO9660 (.iso) image is really a single track in ISO9660 Yellow Book format when it goes on the CD. While Linux hides this fact, when you dd on many other platforms, you're going to get _additional_ bits before and after. ;->