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Re: blu ray burning with samsung se506cb in debian jessie

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  Re: blu ray burning with samsung se506cb in debian jessie "Thomas Schmitt" <scdbackup@gmx.net> - 2016-03-15 08:40 +0100
    Re: blu ray burning with samsung se506cb in debian jessie Dominique Dumont <dominique.dumont@hp.com> - 2016-03-15 20:00 +0100
      Re: blu ray burning with samsung se506cb in debian jessie jdd <jdd@dodin.org> - 2016-03-15 20:00 +0100
    Re: blu ray burning with samsung se506cb in debian jessie Dominique Dumont <dominique.dumont@hp.com> - 2016-03-24 08:40 +0100
      Re: blu ray burning with samsung se506cb in debian jessie "Thomas Schmitt" <scdbackup@gmx.net> - 2016-03-24 09:40 +0100
    Re: blu ray burning with samsung se506cb in debian jessie Dominique Dumont <domi.dumont@free.fr> - 2016-04-03 18:20 +0200
      Re: blu ray burning with samsung se506cb in debian jessie "Thomas Schmitt" <scdbackup@gmx.net> - 2016-04-03 21:10 +0200

#165406 — Re: blu ray burning with samsung se506cb in debian jessie

Hi,

Dominique Dumont wrote:
> try with -speed=1
> This option is the only way for me to burn reliably with my old BR drive

What are the negative symptoms if you do not use this option ?


Have a nice day :)

Thomas

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#165426

On Tuesday 15 March 2016 08:39:21 Thomas Schmitt wrote:
> What are the negative symptoms if you do not use this option ?

It's been a while and I don't remember the exact symptoms. 

Here's what I've noted at that time:
# problem with plextor writer: io error on last files on DL DVD
# try : 1 reduce speed. 2: pioneer writer
# note: plextor's slowest speed on Prodye ix 4x, which is too fast
#       only pionneer and LG report a 2.5 writing speed
# using -speed=1 on plextor is ignored -> speed=4 (fails)
# using -speed=2 on pioneer writer looks good

I had similiar issue on BR, but I don't remember the error message.

I'll have to sacrifice a disk if you need more details.

All the best

-- 
 https://github.com/dod38fr/   -o- http://search.cpan.org/~ddumont/
http://ddumont.wordpress.com/  -o-   irc: dod at irc.debian.org

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#165427

Le 15/03/2016 19:49, Dominique Dumont a écrit :
> On Tuesday 15 March 2016 08:39:21 Thomas Schmitt wrote:
>> What are the negative symptoms if you do not use this option ?
>
> It's been a while and I don't remember the exact symptoms.

I've often noted that the disk writing end with an error, but it was 
simply the fix that was not done, using cdrecord --fix solved the problem.

but of course I only have *one* BD writer, a little short an experience :-(

jdd

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#165893

On Tuesday 15 March 2016 08:39:21 Thomas Schmitt wrote:
> > This option is the only way for me to burn reliably with my old BR drive
> 
> What are the negative symptoms if you do not use this option ?

I did a test on a bluray this evening without -speed option and the disk was 
burnt without issue (and without weird message at the end).

I guess that growisofs got better.

All the best

-- 
 https://github.com/dod38fr/   -o- http://search.cpan.org/~ddumont/
http://ddumont.wordpress.com/  -o-   irc: dod at irc.debian.org

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#165896

Hi,

Dominique Dumont wrote:
> I guess that growisofs got better.

It depends on the starting point of the comparison. {:)

  https://tracker.debian.org/media/packages/d/dvd%2Brw-tools/changelog-7.1-11
shows two program changes in the last 5 years. None would be
related to speed or physical quality of drive and media.
The youngest patch of 2015 is by me.
The other one from 2011 does not change growisofs behavior with
empty BD-R, but only with those which already contain some data.

If speed reduction reproducibly helps, then there is a bad relation
between drive and medium, not a wrongdoing in the burn software.


As for growisofs getting better, one should strive for applying
at least the first patch in
  https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=794868
which is tested by Fedora since 4 years.


Have a nice day :)

Thomas

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#166277

Le mardi 15 mars 2016, 08:39:21 08:39:21 Thomas Schmitt a écrit :
> > This option is the only way for me to burn reliably with my old BR drive
> 
> What are the negative symptoms if you do not use this option ?

The burn process DVD-DL at full speed (8x) on a plextor dvd burner apparently 
works fine, but read verification shows i/o errors on 2 diffrerent drives.

All the best

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#166298

Hi,

Dominique Dumont wrote:
> > > try with -speed=1

i wrote:
> > What are the negative symptoms if you do not use this option ?

> The burn process DVD-DL at full speed (8x) on a plextor dvd burner apparently
> works fine, but read verification shows i/o errors on 2 diffrerent drives.

If this is reproducible, then drive and/or media are at the edge of
failure.

Did you already try with preventing automatic formatting of the BD-R by
  -use-the-force-luke=spare=none
?

To my (personal, subjective, questionable) experience the write quality
is better without Defect Management (e.g. with growisofs on unformatted
BD-R). I conclude this from the fact that i could write and read BD-RE
and BD-R without Defect Management which nearly always failed if it was
enabled.

I am thrifty and thus normally use BD-RE for experiments. But i already
had occasions where BD-R were unreliable.
In the end, either the poorly compatible media were used up or the
drive dropped dead completely. I had to replace 1 Pioneer and 1 LG during
the last 8 years of BD burning.


Have a nice day :)

Thomas

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