[Gllug] re: backups

Russell Howe rhowe at wiss.co.uk
Sun Sep 5 09:16:59 UTC 2004


On Sun, Sep 05, 2004 at 10:05:59AM +0100, adam at thebowery.co.uk wrote:
> > Am I correct in understanding that to write a DVD-R you need to first assemble
> > the complete disc-image on a 'filesystem-file' on disc and then splat the whole
> 
> you can point growisofs (from the dvd+rw tools) at a directory and say "write
> that to disc" or create the .iso image first.

growisofs wraps mkisofs, AFAIK. You can tell mkisofs to output to a
pipe, and then feed that pipe to something like cdrecord - as long as
your machine can supply data faster that the device can write it to
disc, you are fine. If the data dries up at any point, you have to rely
on the "Burn-Proof[tm]" "brunfree" or whatever features more modern
writers have, which stops the writer producing a dud disc. I'm not sure
I'd really trust it to produce a perfect CD though.

I'm sure I read something somewhere about writers laying down better
quality tracks if you run them more slowly. Possibly a concern if you
wish your discs to be readable by as wide a range of drives as possible.

-- 
Russell Howe       | Why be just another cog in the machine,
rhowe at siksai.co.uk | when you can be the spanner in the works?
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