[gentoo-user] Generate data dvd iso image with growisofs or other

[gentoo-user] Generate data dvd iso image with growisofs or other

[Harry Putnam]

I'm having trouble digging out of google and growisofs --help how to
create a dvd data image.  growisofs --help give very little to work
with but the reference to mkisofs lead me to man mkisofs where I find
out how to make a video dvd but still not clear what cmdline is
required for data dvd.

Anyone here know a cmdline for creating a data dvd iso image on disk?

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Re: [gentoo-user] Generate data dvd iso image with growisofs or other

[Christoph Gysin]

Harry Putnam wrote:
> I'm having trouble digging out of google and growisofs --help how to
> create a dvd data image.  growisofs --help give very little to work
> with...

Maybe you should take a look at the man page? There is a nice EXAMPLE section...

Christoph
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[gentoo-user] Re: Generate data dvd iso image with growisofs or other

[Harry Putnam]

Christoph Gysin <cgysin@gmx.ch> writes:

> Harry Putnam wrote:
>> I'm having trouble digging out of google and growisofs --help how to
>> create a dvd data image.  growisofs --help give very little to work
>> with...
>
> Maybe you should take a look at the man page? There is a nice EXAMPLE section...

This will sound quite lame....  I looked for a growisofs man page and
got the report back that there was none.  A while later I though to
run growisofs --help and found very little there.

In between those two acts (about 15-20 minutes) an
   emerge -v dvd+rw-tools
was running in the background part of that time.  Apparently I tried
for the man page too soon but by the time I thought to try --help the
emerge apparently had finished. 

Anyway I was operating under the notion that growisofs had no man page
until rechecking on the strength of your post.

You are right, there is a lot to work with in there.


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Re: [gentoo-user] Re: Generate data dvd iso image with growisofs or other

[fire-eyes]

Note: mkisofs (in cdrtools) is what you create the ISO with, growisofs
is what you use to write the iso to DVD with.

Yeah, I think "growisofs" is a confusing name, too.

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Re: [gentoo-user] Generate data dvd iso image with growisofs or other

[Michael Kjorling]

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On 2005-10-26 09:34 -0500, reader@newsguy.com wrote:
> I'm having trouble digging out of google and growisofs --help how to
> create a dvd data image.  growisofs --help give very little to work
> with but the reference to mkisofs lead me to man mkisofs where I find
> out how to make a video dvd but still not clear what cmdline is
> required for data dvd.

There is nothing special about a DVD ISO. Just make an ISO
9660-compatible image with whatever data you want (in fact, neither a
DVD nor CD needs to contain a ISO 9660 file system at all). I usually
do something very similar to:

mkisofs -o dvdimage.iso -J -r datadir/

Then you can burn this "pre-mastered" image using (see growisofs man
page):

growisofs -dvd-compat -Z /dev/dvd=dvdimage.iso

This should be roughly equivalent to:

growisofs -dvd-compat -Z /dev/dvd -J -r datadir/

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Re: [gentoo-user] Generate data dvd iso image with growisofs or other

[Philip Webb]

051026 Michael Kjorling wrote:
> On 2005-10-26 09:34 -0500, reader@newsguy.com wrote:
>> I'm having trouble digging out of google and growisofs --help
>> how to create a dvd data image.
> There is nothing special about a DVD ISO.

-- useful advice snipped after archiving --

> see growisofs man page

 2  simple follow-up questions (I'm thinking of getting a DVD drive):
(1) which package is 'growisofs' in ?
(2) is the actual writing speed faster with DVD's than CD's ?
    they hold a lot more data, but is writing-time proportional to content ?

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Re: [gentoo-user] Generate data dvd iso image with growisofs or other

[Neil Bothwick]

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On Wed, 26 Oct 2005 17:01:08 -0400, Philip Webb wrote:

> (1) which package is 'growisofs' in ?

app-cdr/dvd+rw-tools

> (2) is the actual writing speed faster with DVD's than CD's ?
>     they hold a lot more data, but is writing-time proportional to
> content ?

Yes it is. 1X on a CD is 172KB/s, 1X on a DVD is 1385KB/s. So 8X DVD is
equivalent to around 64X CD writing. It still takes longer to write a DVD
than a CD on most drives, but nowhere near seven times as long.


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Neil Bothwick

Nymphomania-- an illness you hear about but never encounter.

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Re: [gentoo-user] Generate data dvd iso image with growisofs or other

[Philip Webb]

051026 Neil Bothwick wrote:
> On Wed, 26 Oct 2005 17:01:08 -0400, Philip Webb wrote:
>> (1) which package is 'growisofs' in ?
> app-cdr/dvd+rw-tools
>> (2) is the actual writing speed faster with DVD's than CD's ?
>> they hold a lot more data, but is writing-time proportional to content ?
> Yes it is. 1X on a CD is 172KB/s, 1X on a DVD is 1385KB/s.
> So 8X DVD is equivalent to around 64X CD writing.
> It still takes longer to write a DVD than a CD on most drives,
> but nowhere near seven times as long.

Thanks: that's very useful & will be archived for when I get a DVD drive.

-- 
========================,,============================================
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[gentoo-user] Re: Generate data dvd iso image with growisofs or other

[Harry Putnam]

Philip Webb <purslow@sympatico.ca> writes:

>  2  simple follow-up questions (I'm thinking of getting a DVD drive):
> (1) which package is 'growisofs' in ?

Its in /usr/portage/app-cdr/dvd+rw-tools

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[gentoo-user] Re: Generate data dvd iso image with growisofs or other

[Harry Putnam]

Michael Kjorling <michael@kjorling.com> writes:

[...]

> There is nothing special about a DVD ISO. Just make an ISO
> 9660-compatible image with whatever data you want (in fact, neither a
> DVD nor CD needs to contain a ISO 9660 file system at all). I usually
> do something very similar to:

Well that piece of info greatly simplifies things... thanks.

And for the example command lines too.

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