[SC.LUG] ISO Image dd To DVD+RW

[Frank Mitchell]

Hmm:

I reckon you need to use Formatted Media, which DVD+RW must be. It's Randomly 
Addressable, so you don't need to Close Session like on a Read-Only Disk. 
Buffer Underruns are supposed to be irrelevant using DVD+. And the Drive 
itself can calibrate the Optical Power from the Disk itself. I know I read 
about this somewhere, and the article in question was saying you could 
archive tar files this way. Anybody got any further info?

On Monday 15 February 2010 10:55:31 Oliver Fromme wrote:
> Frank Mitchell <> wrote:
>  > Latest issue of Linux Format Mag gives you a DVD ISO Image for FreeBSD 
v8.0, 
>  > which I happen to be interested in. I was also looking for an interesting 
use 
>  > for my DVD+RW disks. I read somewhere you could "dd" straight from an ISO 
>  > Image file to DVD+RW, though I couldn't remember where.
> 
> Don't know about Linux, but on FreeBSD you can use the growisofs tool
> from the "dvd+rw" tools collection (ports/sysutils/dvd+rw-tools).
> The syntax is simple:  growisofs -dvd-compat -Z /dev/cd0=dvdimage.iso
> (/dev/cd0 is my dvd drive.)  I think you can also use the burncd
> tool that is part of FreeBSD's base system, but I haven't tried to
> do that.  growisofs works perfectly fine for me (it also handles
> double-layer media (8.5 GB) correctly, BTW).
> 
> You cannot use dd for that purpose because dd doesn't have special
> knowledge about the recording process, e.g. it doesn't know how to
> determine the laser power, it doesn't know how to enable burn-proof,
> it doesn't know how to fixate a CD or DVD, i.e. the session won't
> be closed properly, and so on.  That's why a special-purpose tool
> is better suited to handle recording of CD and DVD media.
> 
> Best regards
>    Oliver
> 
> -- 
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