Re: Dual layer DVD
On Thu, Sep 09, 2004 at 11:13:14AM +0100, Steve McIntyre wrote:
> On Wed, Sep 08, 2004 at 08:28:23PM +0000, Joel Baker wrote:
> >On Wed, Sep 08, 2004 at 12:25:29AM +0100, Steve McIntyre wrote:
> >>
> >> Jigdo means that we can do this without eating terabytes of disk space
> >> all over the world. To get the DL DVD images pressed will probably
> >> take extra preparation work - see my new dvdtape package for details.
> >
> >This is more or less what I had in mind, other than some vague notion of
> >being able to auto-generate the 8.5 image from the pair of 4.7 images;
> >of course, jigdo might make that simple (no need to re-fetch most of the
> >pieces, only to fetch the filesystem layout bits and re-assemble them in
> >the correct combination - if it's that smart).
>
> Yes, it should be quite easy to grab all the bits you need from the 2
> smaller ISOs to make the large one, with just the filesystem headers
> and directory structure changing. I'm actually working on a script to
> make that easier right now...
Did you relize that 2*4.7 > 8.5 ?
The second layer on d-l DVDs has less capacity (the pits have to be
somewhat bigger to be readable through the "milk glass" of the inner layer.
So it might be not as easy...
Cheers,
Steffen
--
Steffen Grunewald * * * Merlin cluster admin (http://pandora.aei.mpg.de)
Albert-Einstein-Institut (MPI Gravitationsphysik, http://www.aei.mpg.de)
Science Park Golm, Am Mühlenberg 1, 14476 Potsdam, Germany
e-mail: steffen.grunewald(*)aei.mpg.de * +49-331-567-{fon:7233,fax:7298}
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