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Re: Dual layer dvd burning



John Summerfield wrote:
> Kevin J. Cummings wrote:
>> John Summerfield wrote:
>>> Kevin J. Cummings wrote:
>>>> Tony Nelson wrote:
>>>>> At 6:26 PM -0500 11/19/07, Kevin J. Cummings wrote:
>>>>>  ...
>>>>>> While the drives are capable of holding 8GB of data, the
>>>>>> filesystem is
>>>>>> *still* not capable of holding a file >= 2GB.  This is usually not a
>>>>>> problem when writing video onto these drives as the VOB filesize is <
>>>>>> 2GB anyways.  When using them to write backups of large files, games
>>>>>> must be played to get the data to fit.
>>>>> Why use a filesystem?  I just put a tar archive directly on the media.
>>>>> Growisofs doesn't care what file you burn.
>>>> Uh, yes, it does.  It creates an ISO fs containing the file(s) you want
>>>> burnt, and the ISO fs is where the 2GB filesize limit is.
>>> It doesn't insist on it, see the man page:
>>>        To use growisofs to write a pre-mastered ISO-image to a DVD:
>>>
>>>             growisofs -dvd-compat -Z /dev/dvd=image.iso
>>
>> We're still talking apples and oranges here.  You keep talking about
>> writing ISO filesystems that are already built.  I keep talking about
> 
> Now you're misunderstanding plain English!

By golly, you're right I am.  What you are saying (that I didn't
understand the first time I read it) was that using this syntax, you
don't actually need to give it an ISO file, any old file will do.

> That example is from the man page. The fact it contains a prebuilt ISO
> filesystem is immaterial, it's a file and growisofs is just writing a
> file to the DVD, doing no processing and not (AFAIK) verifying it's an
> ISO image.

To me, that wasn't clear from the man page.  I assumed that it actually
required an ISO file and wouldn't work without one.  So, I never tried
it without one.

> If that does not work (and I think that improbable), try a DVD-capable
> cdrecord.
> 
> The "=" is important. Without it, I would expect growisofs to wrap the
> file into an isofs.

Yes, that is what the man page says.

So, I guess we can stop arguing now and agree to agree.   B^)

-- 
Kevin J. Cummings
kjchome rcn com
cummings kjchome homeip net
cummings kjc386 framingham ma us
Registered Linux User #1232 (http://counter.li.org)


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