Re: Cheap CDs

[csj <csj@mindgate.net>]

At Sun, 1 Dec 2002 06:54:35 +1100,
bob parker wrote:

> On Sun, 1 Dec 2002 06:15, Mark L. Kahnt wrote:
> > On Sat, 2002-11-30 at 13:59, bob parker wrote:
> > > On Sun, 1 Dec 2002 05:06, Mark L. Kahnt wrote:
> > > > Maybe I've just read past this several times in the
> > > > package list without my brain catching what was being
> > > > said, but what is a good program for cloning bootable
> > > > data CDs? I want to make a couple extra copies of the
> > > > Woody CDs, and with both a burner and a CD-ROM on my box,
> > > > I'd like to be able to just load both up and *copy*, but
> > > > nothing seems to handle it all that well. I know that
> > > > Xcdroast will clone audio CDs, but that is not my goal.
> > >
> > > cat /dev/cdrom > cd.iso

[...]

> > Actually, that was my first move, and while the ISO is fine
> > (and yes, you need to be root to do the mount,) all I'm
> > getting on the burn is a small ring at the core of the
> > target, and then it fails. I've made 3 coasters already,
> > which is not my goal.
> >
> > That said, I'd prefer to be able to go directly from one CD
> > to the other if possible.
> 
> I had that happen when I was getting read errors from my cdrom,
> I ended up having to read from my burner pending a purchase of
> a new cdrom.  I did get reported errors at the time. I doubt
> that the gui tools will do any better AFAIK they are just front
> ends to the commandline cdtools.
> 
> Maybe `readcd` to copy your iso, I've just used it to try and
> recover a botched up cdr that went wrong during fixation,
> unsuccessfully in this case.

cdrdao generally does a more thorough, if slower, job of copying
the data off a cdrom. If all else fails you can specify
--read-raw. You have to use the scsi interface though, which
generally means reading from your burner unless you have your
normal cd/dvdrom drive scsi-emulated too.

You could also try dd if=/dev/hdd of=cdrom.img