Blanking/Formating a BD-RE

2008-02-21 Thread Arnold Maderthaner

Hi !

How can I format/blank a BD-RE so that it appears as new (never  
written) media ? I have tried with newest cdrecord version and dvd+rw- 
tools but I don't know how to format it.


Hope someone can help me with my BD-RE problems.

yours

Arnold


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Re: Blanking/Formating a BD-RE

2008-02-21 Thread Joerg Schilling
Arnold Maderthaner [EMAIL PROTECTED] wrote:

 Hi !

 How can I format/blank a BD-RE so that it appears as new (never  
 written) media ? I have tried with newest cdrecord version and dvd+rw- 
 tools but I don't know how to format it.

 Hope someone can help me with my BD-RE problems.

BD-RE cannot ever be turned back into never written state.

Cdrecord simulates a blank option

Jörg

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Re: Announcing xorriso-0.1.0, an integrated CD/DVD ISO 9660 multi-session tool

2008-02-21 Thread Joerg Schilling
Thomas Schmitt [EMAIL PROTECTED] wrote:

 Joerg Schilling:
  Why do you use autoconf if you write software that runs on Linux only?

 They produce the wellknown interface of
   ./configure ; make ; make install

 configure.ac is understandable for package maintainers,
 if not for me. So they can tell me what i need to do there.

 For a similar reason i provide infrastructure for .so libraries
 although i personally avoid this architecture as good as i can.

 By principle, libburnia adapts to Linux, not vice versa.

So does it really like to be something that does not follow the principles 
of OpenSource that are based on broad usability on as many platforms as 
possible?

Linux is the most deviant platform for SCSI. If you adopt to Linux, you adopt
to no real portability.


Jörg

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Re: Announcing xorriso-0.1.0, an integrated CD/DVD ISO 9660 multi-session tool

2008-02-21 Thread Thomas Schmitt
Hi,

me:
  By principle, libburnia adapts to Linux, not vice versa.
Joerg Schilling:
 OpenSource [...] Linux is the most deviant platform for SCSI.
 If you adopt to Linux, you adopt to no real portability.

If it is for weight and quantity then OpenSource _is_ Linux.
So any portability has to come after suitability for the
full range of Linux systems.

Having said this, believe me that i know how to produce
portable code and how to handle portability problems
if they arise. I am able to maintain CAD sources which
run on Domain/IX, SunOS, IRIX, Slowlaris, HP-UX and even
(spit spit) MS-Windows. More than a dozen POSIX systems.


Now i challenge you to tell me how i shall handle generic
transport of SCSI commands in a portable way.
Where are the common standards for this ?
Why aren't drive addresse schemes the same on any two
different POSIX resp. X/Open systems ?

There is no alternative to system specific adapter modules.

Joerg, you may pretend that libburnia is not designed portably.
As long as nobody wants it on any other system i can hardly
prove the contrary.
So let's for now divide the world into two halfs:

  We try to serve Linux, you serve the rest.


Have a nice day :)

Thomas


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Re: Announcing xorriso-0.1.0, an integrated CD/DVD ISO 9660 multi-session tool

2008-02-21 Thread Vreixo Formoso Lopes
Hi!

It is the first time I write to this list, so please
let me introduce myself. I'm Vreixo Formoso, member of
libburnia team an libisofs/libisoburn developer. Sorry
for my bad english...

--- Thomas Schmitt [EMAIL PROTECTED] escreveu:

 If you adopt to Linux, you
 adopt
 to no real portability.

Seriously, as libisofs developer I have no real
interest in protability. And not because I'm against
it, just because I have no time nor resources to
provide it. I use Linux. My target is Linux.

If tomorrow somebody request me hi, Vreixo, I need a
libisofs port to XXX. Can you help me?, then I will
do the best of my effort to help that user. But surely
that request will need to come together with a I can
help you.

Otherwise I prefer to waste my time in things much
more interesting... I'm sure most of libisofs users
prefer some new features before a port to a system
none of them use.

Cheers,
Vreixo



  Abra sua conta no Yahoo! Mail, o único sem limite de espaço para 
armazenamento!
http://br.mail.yahoo.com/


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Re: Announcing xorriso-0.1.0, an integrated CD/DVD ISO 9660 multi-session tool

2008-02-21 Thread Joerg Schilling
Thomas Schmitt [EMAIL PROTECTED] wrote:

If you know how to write portable code, why don't you do it?


 Now i challenge you to tell me how i shall handle generic
 transport of SCSI commands in a portable way.
 Where are the common standards for this ?
 Why aren't drive addresse schemes the same on any two
 different POSIX resp. X/Open systems ?

Libscg is the right way to go...


   We try to serve Linux, you serve the rest.

I serve everybody, you serve a part only.

Jörg

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Re: Announcing xorriso-0.1.0, an integrated CD/DVD ISO 9660 multi-session tool

2008-02-21 Thread Joerg Schilling
Vreixo Formoso Lopes [EMAIL PROTECTED] wrote:

  If you adopt to Linux, you
  adopt
  to no real portability.

 Seriously, as libisofs developer I have no real
 interest in protability. And not because I'm against
 it, just because I have no time nor resources to
 provide it. I use Linux. My target is Linux.

If you warn all possible libisofs users about the fact 
that you are not interested in portability, there is no problem.

We have a problem if projects that are indtneded to be _portable_
(like e.g. GNOME) start using non-portable libraries.

Jörg

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 URL:  http://cdrecord.berlios.de/old/private/ ftp://ftp.berlios.de/pub/schily


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Re: Blanking/Formating a BD-RE

2008-02-21 Thread Thomas Schmitt
Hi,

 The only thing I want to have is that I cannot mount it anymore with the
 previous filesystem (all tracks should be removed).

Tracks ? Plural ? On BD-RE ?

From the specs i read that BD-RE is overwriteable media
like DVD-RAM or DVD+RW. So the operating system does not
see any tracks but a random access disk.

It would therefore try to read the filesystem info
from the default address on such disks. In case of a
ISO 9660 filesystem this would be the blocks beginning
with number 16 (= 32 kB).

If your drive has address /dev/sr0 this command
  dd bs=2048 skip=16 count=1 if=/dev/sr0 | od -c | less
will show the decisive line
  000 001   C   D   0   0   1 001  \0


If you overwrite the first 32 blocks by zeros then the media
will surely not be recognized as mountable ISO filesystem.
  dd bs=2048 count=32 if=/dev/zero of=/dev/sr0


Have a nice day :)

Thomas


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