Re: cdrecord and multisession audio/data cd's?

2003-11-28 Thread John Clemens

Right, I meant to follow this up but never did.  I think it's a
linux/cdrecord issue now.. because it works if i boot into MacOSX 10.3
and use this cdrecord (from fink):

Cdrecord 1.11a39 (powerpc-apple-macosx7.0.0) Copyright (C) 1995-2002 J?rg
Schilling

(of course, i have to play all sorts of horrible games with finder,
because killing automount doesn't keep finder from 'helpfully' mounting an
audio cd, which, after you burn the first session, it thiks your disk is.
solution: manually unmount /dev/diskX (the cd) and start the second
cdrecord session in the 30s on so until finder finds and re-mounts the
audio cd again...)

Under Linux, here's what I get (on both the sony and the toshiba, so i'm
only including output from the toshiba)..  both Linux boxen are running
2.6.0-test kernels, which may be the problem, and i'v tried both ATAPI:
and regular ide-scsi.. Again, the exact same commands work using the
exact same .raw files if i'm using macosx:

[EMAIL PROTECTED] ~ $ sudo cdrecord dev=ATAPI:0,1,0 speed=4 -v -multi -xa1
netbsd-kernel.raw
Password:
Cdrecord-Clone 2.01a18 (i686-pc-linux-gnu) Copyright (C) 1995-2003 J?rg
Schilling
TOC Type: 3 = CD-ROM XA mode 2
scsidev: 'ATAPI:0,1,0'
devname: 'ATAPI'
scsibus: 0 target: 1 lun: 0
Warning: Using ATA Packet interface.
Warning: The related libscg interface code is in pre alpha.
Warning: There may be fatal problems.
Using libscg version 'schily-0.7'
SCSI buffer size: 64512
atapi: 1
Device type: Removable CD-ROM
Version: 0
Response Format: 2
Capabilities   :
Vendor_info: 'TOSHIBA '
Identifikation : 'DVD-ROM SD-R1002'
Revision   : '1030'
Device seems to be: Generic mmc2 DVD-ROM.
Current: 0x0009
Profile: 0x0010
Profile: 0x0008
Profile: 0x0009 (current)
Profile: 0x000A
Using generic SCSI-3/mmc   CD-R/CD-RW driver (mmc_cdr).
Driver flags   : MMC-2 SWABAUDIO
Supported modes: TAO PACKET SAO SAO/R96P SAO/R96R
Drive buf size : 1347584 = 1316 KB
FIFO size  : 4194304 = 4096 KB
Track 01: data 0 MB
Total size:1 MB (00:06.12) = 459 sectors
Lout start:1 MB (00:08/09) = 459 sectors
Current Secsize: 2048
ATIP info from disk:
  Indicated writing power: 5
  Is not unrestricted
  Is not erasable
  ATIP start of lead in:  -11634 (97:26/66)
  ATIP start of lead out: 359848 (79:59/73)
Disk type:Short strategy type (Phthalocyanine or similar)
Manuf. index: 3
Manufacturer: CMC Magnetics Corporation
Blocks total: 359848 Blocks current: 348146 Blocks remaining: 347687
Starting to write CD/DVD at speed 4 in real TAO mode for multi session.
Last chance to quit, starting real write0 seconds. Operation starts.
Waiting for reader process to fill input buffer ... input buffer ready.
cdrecord: Input/output error. mode select g1: scsi sendcmd: no error
CDB:  55 10 00 00 00 00 00 00 3C 00
status: 0x2 (CHECK CONDITION)
Sense Bytes: 70 00 05 00 00 00 00 0A 00 00 00 00 26 00 00 80 00 0C
Sense Key: 0x5 Illegal Request, Segment 0
Sense Code: 0x26 Qual 0x00 (invalid field in parameter list) Fru 0x0
Sense flags: Blk 0 (not valid) error refers to data part, bit ptr 0 (not
valid) field ptr 12
cmd finished after 0.000s timeout 40s
cdrecord: Warning: using default CD write parameter data.
Mode Select Data 00 16 00 00 05 32 01 C4 0B 00 00 00 20 00 00 00 00 00 00
96 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00
cdrecord: Cannot open new session.
Writing  time:0.011s
cdrecord: fifo had 15 puts and 0 gets.
cdrecord: fifo was 0 times empty and 0 times full, min fill was 100%.

[EMAIL PROTECTED] ~ $ sudo cdrecord dev=ATAPI:0,1,0 speed=4 -msinfo
0,11702
^^^ these are the numbers that were used to create the second
filesystem, so that should be correct.  If you would like, i can post a
log of a successful run using cdrecord under macosx, and the log of the
first session (successful) burn.  I tried an earlier 1.9 version of
cdrecord on linux, and still got the error.

any ideas?
john.c


On Fri, 28 Nov 2003, Joerg Schilling wrote:

> >From: John Clemens <[EMAIL PROTECTED]>
>
> >I'm trying to use cdrecord to master a CD image to boot my Dreamcast..
> >Several sights say to master a 2-session cd, with the first session
> >containing an audio track and the second containing your raw data image
> >(in XA1 format).
>
> >Several places on the net give the following commands to do this:
> >cdrecord dev=0,0,0 -multi -audio audio.raw
> >cdrecord dev=0,0,0 -multi -xa1 data.raw
>
> >(data.raw is a mkhybrid iso9660 filesystem, with the first few sectors
> >overwritten with some boot code for the dreamcast)
>
> >however, i've tried this sequence on two very different cdr's (an old
> >trusty Toshiba SD-1002, and the newer sony CDRW/DVD in my i-book.) and i
> >can never get cdrecord to record the second session (the first completes
> >fine).  The second always fails complaining about cannot open a new
> >session/blah, illegal status ok, illegal arguments, etc.
>
> If you don't give information, it is impossible t

I/O Magic idvdrw4db

2003-11-28 Thread Geoffrey
Looking to possibly purchase a dvd burner.  I/O Magic DVD +-RW/+-R Dual 
Format 4x DVD ReWritable drive.  Number off the box is IDVDRW4DB

I couldn't locate supported hardware info for cdrecord-prodvd.  Does 
anyone know if this drive will work?

Thanks.
--
Until later, Geoffrey   [EMAIL PROTECTED]
Building secure systems inspite of Microsoft


Re: Re: DVD recording adventures continued

2003-11-28 Thread Florian Lindauer
> You did not follow the man page for cdrecord and the README in
>   ftp://ftp.berlios.de/pub/cdrecord/ProDVD/
> This is definitely wrong usage.

OK. Have to admit it's somewhat embarrassing I overread that
section flagged "important notice"..
But to be honest, things could still be put more clearly, especially
for people not so deep into all of this.
Before I will be able to test it next week, probably Monday evening,
I now came to the following "theory":

"Cdrecord currently only supports SAO mode. Cdrecord-ProDVD-1.11a35 
and later allow to specify -dao for correctness. Later versions of 
cdrecord will only write DVDs if -dao is specified"
-> it could be a good idea to specify -dao for DVD-R
   even if it may be just "for correctness"

> cdrecord writes in SAO mode so it needs to know the sizes.

-> Currently using the pipe-scheme "mkisofs | cdrecord" I would
   have to specify tsize, which I cannot do. So I cannot use the
   pipe but have to create an image, the filesize of which will
   be what is needed.

Right?  

I read the other post regarding pxupdate. I would try that as
well on Monday, but as you already stated there is no firmware
binary supplied by Plextor. I had the hope it could be somehow
extracted using Windows, but indeed I was not able to do that.

As for the "secret firmware" - is it a new version 1.04, or only
the 1.03 as pure flash-image? In the latter case, if Plextor calls
that "secret", I wouldnt know how to call that.. perhaps "strange"..
And being on that topic, just being curious: are you under some
kind of NDA with Plextor here? After all, proDVD and pxupdate
are only available as binary as far as I can tell, would it be
a problem for Plextor if that was Open Source? (So just 
trying to find out if Plextor behaves like SD card consortium
or similar proprietary..)

FL



Re: cdrecord and multisession audio/data cd's?

2003-11-28 Thread John Clemens

Right, I meant to follow this up but never did.  I think it's a
linux/cdrecord issue now.. because it works if i boot into MacOSX 10.3
and use this cdrecord (from fink):

Cdrecord 1.11a39 (powerpc-apple-macosx7.0.0) Copyright (C) 1995-2002 J?rg
Schilling

(of course, i have to play all sorts of horrible games with finder,
because killing automount doesn't keep finder from 'helpfully' mounting an
audio cd, which, after you burn the first session, it thiks your disk is.
solution: manually unmount /dev/diskX (the cd) and start the second
cdrecord session in the 30s on so until finder finds and re-mounts the
audio cd again...)

Under Linux, here's what I get (on both the sony and the toshiba, so i'm
only including output from the toshiba)..  both Linux boxen are running
2.6.0-test kernels, which may be the problem, and i'v tried both ATAPI:
and regular ide-scsi.. Again, the exact same commands work using the
exact same .raw files if i'm using macosx:

[EMAIL PROTECTED] ~ $ sudo cdrecord dev=ATAPI:0,1,0 speed=4 -v -multi -xa1
netbsd-kernel.raw
Password:
Cdrecord-Clone 2.01a18 (i686-pc-linux-gnu) Copyright (C) 1995-2003 J?rg
Schilling
TOC Type: 3 = CD-ROM XA mode 2
scsidev: 'ATAPI:0,1,0'
devname: 'ATAPI'
scsibus: 0 target: 1 lun: 0
Warning: Using ATA Packet interface.
Warning: The related libscg interface code is in pre alpha.
Warning: There may be fatal problems.
Using libscg version 'schily-0.7'
SCSI buffer size: 64512
atapi: 1
Device type: Removable CD-ROM
Version: 0
Response Format: 2
Capabilities   :
Vendor_info: 'TOSHIBA '
Identifikation : 'DVD-ROM SD-R1002'
Revision   : '1030'
Device seems to be: Generic mmc2 DVD-ROM.
Current: 0x0009
Profile: 0x0010
Profile: 0x0008
Profile: 0x0009 (current)
Profile: 0x000A
Using generic SCSI-3/mmc   CD-R/CD-RW driver (mmc_cdr).
Driver flags   : MMC-2 SWABAUDIO
Supported modes: TAO PACKET SAO SAO/R96P SAO/R96R
Drive buf size : 1347584 = 1316 KB
FIFO size  : 4194304 = 4096 KB
Track 01: data 0 MB
Total size:1 MB (00:06.12) = 459 sectors
Lout start:1 MB (00:08/09) = 459 sectors
Current Secsize: 2048
ATIP info from disk:
  Indicated writing power: 5
  Is not unrestricted
  Is not erasable
  ATIP start of lead in:  -11634 (97:26/66)
  ATIP start of lead out: 359848 (79:59/73)
Disk type:Short strategy type (Phthalocyanine or similar)
Manuf. index: 3
Manufacturer: CMC Magnetics Corporation
Blocks total: 359848 Blocks current: 348146 Blocks remaining: 347687
Starting to write CD/DVD at speed 4 in real TAO mode for multi session.
Last chance to quit, starting real write0 seconds. Operation starts.
Waiting for reader process to fill input buffer ... input buffer ready.
cdrecord: Input/output error. mode select g1: scsi sendcmd: no error
CDB:  55 10 00 00 00 00 00 00 3C 00
status: 0x2 (CHECK CONDITION)
Sense Bytes: 70 00 05 00 00 00 00 0A 00 00 00 00 26 00 00 80 00 0C
Sense Key: 0x5 Illegal Request, Segment 0
Sense Code: 0x26 Qual 0x00 (invalid field in parameter list) Fru 0x0
Sense flags: Blk 0 (not valid) error refers to data part, bit ptr 0 (not
valid) field ptr 12
cmd finished after 0.000s timeout 40s
cdrecord: Warning: using default CD write parameter data.
Mode Select Data 00 16 00 00 05 32 01 C4 0B 00 00 00 20 00 00 00 00 00 00
96 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00
cdrecord: Cannot open new session.
Writing  time:0.011s
cdrecord: fifo had 15 puts and 0 gets.
cdrecord: fifo was 0 times empty and 0 times full, min fill was 100%.

[EMAIL PROTECTED] ~ $ sudo cdrecord dev=ATAPI:0,1,0 speed=4 -msinfo
0,11702
^^^ these are the numbers that were used to create the second
filesystem, so that should be correct.  If you would like, i can post a
log of a successful run using cdrecord under macosx, and the log of the
first session (successful) burn.  I tried an earlier 1.9 version of
cdrecord on linux, and still got the error.

any ideas?
john.c


On Fri, 28 Nov 2003, Joerg Schilling wrote:

> >From: John Clemens <[EMAIL PROTECTED]>
>
> >I'm trying to use cdrecord to master a CD image to boot my Dreamcast..
> >Several sights say to master a 2-session cd, with the first session
> >containing an audio track and the second containing your raw data image
> >(in XA1 format).
>
> >Several places on the net give the following commands to do this:
> >cdrecord dev=0,0,0 -multi -audio audio.raw
> >cdrecord dev=0,0,0 -multi -xa1 data.raw
>
> >(data.raw is a mkhybrid iso9660 filesystem, with the first few sectors
> >overwritten with some boot code for the dreamcast)
>
> >however, i've tried this sequence on two very different cdr's (an old
> >trusty Toshiba SD-1002, and the newer sony CDRW/DVD in my i-book.) and i
> >can never get cdrecord to record the second session (the first completes
> >fine).  The second always fails complaining about cannot open a new
> >session/blah, illegal status ok, illegal arguments, etc.
>
> If you don't give information, it is impossible t

I/O Magic idvdrw4db

2003-11-28 Thread Geoffrey
Looking to possibly purchase a dvd burner.  I/O Magic DVD +-RW/+-R Dual 
Format 4x DVD ReWritable drive.  Number off the box is IDVDRW4DB

I couldn't locate supported hardware info for cdrecord-prodvd.  Does 
anyone know if this drive will work?

Thanks.

--
Until later, Geoffrey   [EMAIL PROTECTED]
Building secure systems inspite of Microsoft

--
To UNSUBSCRIBE, email to [EMAIL PROTECTED]
with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]


Re: Re: DVD recording adventures continued

2003-11-28 Thread Florian Lindauer
> You did not follow the man page for cdrecord and the README in
>   ftp://ftp.berlios.de/pub/cdrecord/ProDVD/
> This is definitely wrong usage.

OK. Have to admit it's somewhat embarrassing I overread that
section flagged "important notice"..
But to be honest, things could still be put more clearly, especially
for people not so deep into all of this.
Before I will be able to test it next week, probably Monday evening,
I now came to the following "theory":

"Cdrecord currently only supports SAO mode. Cdrecord-ProDVD-1.11a35 
and later allow to specify -dao for correctness. Later versions of 
cdrecord will only write DVDs if -dao is specified"
-> it could be a good idea to specify -dao for DVD-R
   even if it may be just "for correctness"

> cdrecord writes in SAO mode so it needs to know the sizes.

-> Currently using the pipe-scheme "mkisofs | cdrecord" I would
   have to specify tsize, which I cannot do. So I cannot use the
   pipe but have to create an image, the filesize of which will
   be what is needed.

Right?  

I read the other post regarding pxupdate. I would try that as
well on Monday, but as you already stated there is no firmware
binary supplied by Plextor. I had the hope it could be somehow
extracted using Windows, but indeed I was not able to do that.

As for the "secret firmware" - is it a new version 1.04, or only
the 1.03 as pure flash-image? In the latter case, if Plextor calls
that "secret", I wouldnt know how to call that.. perhaps "strange"..
And being on that topic, just being curious: are you under some
kind of NDA with Plextor here? After all, proDVD and pxupdate
are only available as binary as far as I can tell, would it be
a problem for Plextor if that was Open Source? (So just 
trying to find out if Plextor behaves like SD card consortium
or similar proprietary..)

FL


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Re: cdrecord -scanbus strangeness?

2003-11-28 Thread Lourens Veen
On Fri 28 November 2003 23:24, Ambrose Li wrote:
> Hello,
>
> sorry if this is a stupid question.
>
> I just downloaded cdrtools-2.01a20pre2 to try out its ATAPI
> support. (Linux 2.4's ide-scsi seems to be very broken.)
> I noticed the following:
>
> - cdrecord dev=help says bus scanning is supported for the ATAPI
>   transport;
>
> - However, if I run cdrecord -scanbus, I just get


See README.ATAPI in the source distro.

Lourens
-- 
GPG public key: http://home.student.utwente.nl/l.e.veen/lourens.key



cdrecord -scanbus strangeness?

2003-11-28 Thread Ambrose Li
Hello,

sorry if this is a stupid question.

I just downloaded cdrtools-2.01a20pre2 to try out its ATAPI
support. (Linux 2.4's ide-scsi seems to be very broken.)
I noticed the following:

- cdrecord dev=help says bus scanning is supported for the ATAPI
  transport;

- However, if I run cdrecord -scanbus, I just get

Cdrecord-Clone 2.01a19 (i686-pc-linux-gnu) Copyright (C) 1995-2003 Jg Schilling
cdrecord: No such file or directory. Cannot open '/dev/pg*'. Cannot open SCSI 
driver.
cdrecord: For possible targets try 'cdrecord -scanbus'. Make sure you are root.
cdrecord: For possible transport specifiers try 'cdrecord dev=help'.

strace seems to indicate that cdrecord stopped scanning after
it failed to open the /dev/pg files.

It may be this is the intended behaviour, but somehow it feels
wrong that it would not scan ATAPI because it can't open the
pg devices. Is this a bug, or is there some special notation I
need to use to tell cdrecord to scan the ATAPI bus?

(This is basically a DIY distribution, but I remember this also
happening on my Debian box at the office. So I am suspecting that
this behaviour is not related to the OS.)

Thanks.




Re: cdrecord -scanbus strangeness?

2003-11-28 Thread Lourens Veen
On Fri 28 November 2003 23:24, Ambrose Li wrote:
> Hello,
>
> sorry if this is a stupid question.
>
> I just downloaded cdrtools-2.01a20pre2 to try out its ATAPI
> support. (Linux 2.4's ide-scsi seems to be very broken.)
> I noticed the following:
>
> - cdrecord dev=help says bus scanning is supported for the ATAPI
>   transport;
>
> - However, if I run cdrecord -scanbus, I just get


See README.ATAPI in the source distro.

Lourens
-- 
GPG public key: http://home.student.utwente.nl/l.e.veen/lourens.key


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cdrecord -scanbus strangeness?

2003-11-28 Thread Ambrose Li
Hello,

sorry if this is a stupid question.

I just downloaded cdrtools-2.01a20pre2 to try out its ATAPI
support. (Linux 2.4's ide-scsi seems to be very broken.)
I noticed the following:

- cdrecord dev=help says bus scanning is supported for the ATAPI
  transport;

- However, if I run cdrecord -scanbus, I just get

Cdrecord-Clone 2.01a19 (i686-pc-linux-gnu) Copyright (C) 1995-2003 Jg Schilling
cdrecord: No such file or directory. Cannot open '/dev/pg*'. Cannot open SCSI driver.
cdrecord: For possible targets try 'cdrecord -scanbus'. Make sure you are root.
cdrecord: For possible transport specifiers try 'cdrecord dev=help'.

strace seems to indicate that cdrecord stopped scanning after
it failed to open the /dev/pg files.

It may be this is the intended behaviour, but somehow it feels
wrong that it would not scan ATAPI because it can't open the
pg devices. Is this a bug, or is there some special notation I
need to use to tell cdrecord to scan the ATAPI bus?

(This is basically a DIY distribution, but I remember this also
happening on my Debian box at the office. So I am suspecting that
this behaviour is not related to the OS.)

Thanks.



-- 
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Re: PXUpdate / PX-708A

2003-11-28 Thread Joerg Schilling
Hi all,

the information for firmware upgrade did arrive yesterday.
As I today received a (still secret) firmware binary, I have been
able to implement support for the 708 today.

I will put out a new version soon - you still have to wait until
Plextor makes formware available that is not bundled with a Win32
upgrade binary.

Jörg

-- 
 EMail:[EMAIL PROTECTED] (home) Jörg Schilling D-13353 Berlin
   [EMAIL PROTECTED](uni)  If you don't have iso-8859-1
   [EMAIL PROTECTED](work) chars I am J"org Schilling
 URL:  http://www.fokus.fraunhofer.de/usr/schilling 
ftp://ftp.berlios.de/pub/schily



Re: PXUpdate / PX-708A

2003-11-28 Thread Joerg Schilling
Hi all,

the information for firmware upgrade did arrive yesterday.
As I today received a (still secret) firmware binary, I have been
able to implement support for the 708 today.

I will put out a new version soon - you still have to wait until
Plextor makes formware available that is not bundled with a Win32
upgrade binary.

Jörg

-- 
 EMail:[EMAIL PROTECTED] (home) Jörg Schilling D-13353 Berlin
   [EMAIL PROTECTED](uni)  If you don't have iso-8859-1
   [EMAIL PROTECTED](work) chars I am J"org Schilling
 URL:  http://www.fokus.fraunhofer.de/usr/schilling ftp://ftp.berlios.de/pub/schily


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Re: DVD+/-R writers

2003-11-28 Thread Joerg Schilling
>From: Andy Polyakov <[EMAIL PROTECTED]>

>> > Only once fully formated (which
>> >takes 1 hour for 1x media), DVD-RW permits for random write, but with
>> >32KB granularity. Latter means that you either have to have special
>> >kernel driver which would arrange for 32KB granularity or modify file
>> >system code to do same thing. Now note that no work (at least no visible
>> >outcome so far) has been done to accomplish either of these two
>> >alternatives under Linux (or any other Unix implementation), [presumaly]
>> >because it's damn hard.
>> 
>> So DVD+RW drives do things in firmware what you need to do in the kernel
>> if you like to have 2k granularity with DVD-RW. But this is nothing a new
>> firmware could not support.

>Specifications are very explicit about I/O granularity in DVD-RW
>Restricted Overwrite mode. You seem to be willing to bend standard to
>suit you, it's not fair play. Secondly it doesn't really matter what one
>*could* *possibly* do [to stretch something to something else], does it?

Well, it seems that you make unproven assumptions on the quality of DVD+, so
I believe that it is fair to tell people that in theory it would be possible to
enhance DVD- firmware and hardware so partially formatted media may be 
adddressed ramdomly.

>> Note that the kernel also first reads a 512 byte sector from a hard disk
>> if you like to write only 64 bytes.

>Yes. But as already implied, if you want to extend this to 32KB to
>accomodate DVD-RW Restricted Overwrite, you have to modify kernel file
>system driver. The question was "why is there random access possibility
>for DVD+RW, but not for DVD-RW?" A.

If you believe that the kernel filesystem driver needs to be modified, then 
you are taling about a broken OS.

On a typical OS, the filesystem code talks to the block abstraction layer.

This layer has been the buffer case on historic implementation and is the
semgment driver layer + VM Cache in modern implementations.
What you have to do is to change this layer to know that there may be 
32 KB Blocks.




Jörg

-- 
 EMail:[EMAIL PROTECTED] (home) Jörg Schilling D-13353 Berlin
   [EMAIL PROTECTED](uni)  If you don't have iso-8859-1
   [EMAIL PROTECTED](work) chars I am J"org Schilling
 URL:  http://www.fokus.fraunhofer.de/usr/schilling 
ftp://ftp.berlios.de/pub/schily



Re: DVD+/-R writers

2003-11-28 Thread Joerg Schilling
>From: Andy Polyakov <[EMAIL PROTECTED]>

>> DVD+R usually does not know the size of the medium when it starts
>> writing and therefore writes the TOC after the data. With DVD-R and DVD-RW
>> and cdrecord you write in SAO mode which causes the TOC to be written first
>> and the data to be written later without the need to reposition the laser.

>High frequency DVD+ ADIP makes it possible to reposition the laser with
>adequate accuracy. Adequate enough to maintain compatibility with
>DVD-ROM. This was discussed already long time ago. And as already said
>implementing DVD+R SAO would *not* improve compatibility with DVD-ROM,
>so there is no point to complain about lack of it. In other words single
>DVD+R recording mode is more than enough. A.


Please don't repeat unproven statements. We did already discuss this and you 
never have been able to prove your claims.

In order to make a recording that is as good as a real SAO recording (as you
may have it e.g. with DVD-R) you need to be more acurate than the size of a 
single bit. I am sure that both, DVD+R and DVD-R are no better than approx. one
byte.

BTW: High frequency ADIP is not a grant for high positioning accuracy. Left 
alone, it would be much worse than the ADIP + Prepits in DVD-*. Only the fact 
that DVD+ uses phase shifts (as marks similar to the pre-pits) makes
DVD+ usable


Jörg

-- 
 EMail:[EMAIL PROTECTED] (home) Jörg Schilling D-13353 Berlin
   [EMAIL PROTECTED](uni)  If you don't have iso-8859-1
   [EMAIL PROTECTED](work) chars I am J"org Schilling
 URL:  http://www.fokus.fraunhofer.de/usr/schilling 
ftp://ftp.berlios.de/pub/schily



Re: cdrecord and multisession audio/data cd's?

2003-11-28 Thread Joerg Schilling
>From: John Clemens <[EMAIL PROTECTED]>

>I'm trying to use cdrecord to master a CD image to boot my Dreamcast..
>Several sights say to master a 2-session cd, with the first session
>containing an audio track and the second containing your raw data image
>(in XA1 format).

>Several places on the net give the following commands to do this:
>cdrecord dev=0,0,0 -multi -audio audio.raw
>cdrecord dev=0,0,0 -multi -xa1 data.raw

>(data.raw is a mkhybrid iso9660 filesystem, with the first few sectors
>overwritten with some boot code for the dreamcast)

>however, i've tried this sequence on two very different cdr's (an old
>trusty Toshiba SD-1002, and the newer sony CDRW/DVD in my i-book.) and i
>can never get cdrecord to record the second session (the first completes
>fine).  The second always fails complaining about cannot open a new
>session/blah, illegal status ok, illegal arguments, etc.

If you don't give information, it is impossible to help.

http://www.fokus.fhg.de/research/cc/glone/employees/joerg.schilling/private/problems.html

Jörg

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Re: growisofs for cd-RW and DVD-RW?

2003-11-28 Thread Joerg Schilling
>From: Rob Bogus <[EMAIL PROTECTED]>


>Am I missing something with dvdrecord, or do I have to apply the kernel 
>patch to make it work? There's a push to use stock kernels for this, so 
>I very much don't want to choose that fight, slow and CPU intensive is 
>better than commiting to providing custom kernels indefinitely.

You miss that this program is illegal, it violates the GPL.

This program is unmaintained... 

Jörg

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Re: DVD+/-R writers

2003-11-28 Thread Joerg Schilling
>From: Andy Polyakov <[EMAIL PROTECTED]>

>> > Only once fully formated (which
>> >takes 1 hour for 1x media), DVD-RW permits for random write, but with
>> >32KB granularity. Latter means that you either have to have special
>> >kernel driver which would arrange for 32KB granularity or modify file
>> >system code to do same thing. Now note that no work (at least no visible
>> >outcome so far) has been done to accomplish either of these two
>> >alternatives under Linux (or any other Unix implementation), [presumaly]
>> >because it's damn hard.
>> 
>> So DVD+RW drives do things in firmware what you need to do in the kernel
>> if you like to have 2k granularity with DVD-RW. But this is nothing a new
>> firmware could not support.

>Specifications are very explicit about I/O granularity in DVD-RW
>Restricted Overwrite mode. You seem to be willing to bend standard to
>suit you, it's not fair play. Secondly it doesn't really matter what one
>*could* *possibly* do [to stretch something to something else], does it?

Well, it seems that you make unproven assumptions on the quality of DVD+, so
I believe that it is fair to tell people that in theory it would be possible to
enhance DVD- firmware and hardware so partially formatted media may be 
adddressed ramdomly.

>> Note that the kernel also first reads a 512 byte sector from a hard disk
>> if you like to write only 64 bytes.

>Yes. But as already implied, if you want to extend this to 32KB to
>accomodate DVD-RW Restricted Overwrite, you have to modify kernel file
>system driver. The question was "why is there random access possibility
>for DVD+RW, but not for DVD-RW?" A.

If you believe that the kernel filesystem driver needs to be modified, then 
you are taling about a broken OS.

On a typical OS, the filesystem code talks to the block abstraction layer.

This layer has been the buffer case on historic implementation and is the
semgment driver layer + VM Cache in modern implementations.
What you have to do is to change this layer to know that there may be 
32 KB Blocks.




Jörg

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Re: DVD+/-R writers

2003-11-28 Thread Joerg Schilling
>From: Andy Polyakov <[EMAIL PROTECTED]>

>> DVD+R usually does not know the size of the medium when it starts
>> writing and therefore writes the TOC after the data. With DVD-R and DVD-RW
>> and cdrecord you write in SAO mode which causes the TOC to be written first
>> and the data to be written later without the need to reposition the laser.

>High frequency DVD+ ADIP makes it possible to reposition the laser with
>adequate accuracy. Adequate enough to maintain compatibility with
>DVD-ROM. This was discussed already long time ago. And as already said
>implementing DVD+R SAO would *not* improve compatibility with DVD-ROM,
>so there is no point to complain about lack of it. In other words single
>DVD+R recording mode is more than enough. A.


Please don't repeat unproven statements. We did already discuss this and you 
never have been able to prove your claims.

In order to make a recording that is as good as a real SAO recording (as you
may have it e.g. with DVD-R) you need to be more acurate than the size of a 
single bit. I am sure that both, DVD+R and DVD-R are no better than approx. one
byte.

BTW: High frequency ADIP is not a grant for high positioning accuracy. Left 
alone, it would be much worse than the ADIP + Prepits in DVD-*. Only the fact 
that DVD+ uses phase shifts (as marks similar to the pre-pits) makes
DVD+ usable


Jörg

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Re: cdrecord and multisession audio/data cd's?

2003-11-28 Thread Joerg Schilling
>From: John Clemens <[EMAIL PROTECTED]>

>I'm trying to use cdrecord to master a CD image to boot my Dreamcast..
>Several sights say to master a 2-session cd, with the first session
>containing an audio track and the second containing your raw data image
>(in XA1 format).

>Several places on the net give the following commands to do this:
>cdrecord dev=0,0,0 -multi -audio audio.raw
>cdrecord dev=0,0,0 -multi -xa1 data.raw

>(data.raw is a mkhybrid iso9660 filesystem, with the first few sectors
>overwritten with some boot code for the dreamcast)

>however, i've tried this sequence on two very different cdr's (an old
>trusty Toshiba SD-1002, and the newer sony CDRW/DVD in my i-book.) and i
>can never get cdrecord to record the second session (the first completes
>fine).  The second always fails complaining about cannot open a new
>session/blah, illegal status ok, illegal arguments, etc.

If you don't give information, it is impossible to help.

http://www.fokus.fhg.de/research/cc/glone/employees/joerg.schilling/private/problems.html

Jörg

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 EMail:[EMAIL PROTECTED] (home) Jörg Schilling D-13353 Berlin
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   [EMAIL PROTECTED](work) chars I am J"org Schilling
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Re: growisofs for cd-RW and DVD-RW?

2003-11-28 Thread Joerg Schilling
>From: Rob Bogus <[EMAIL PROTECTED]>


>Am I missing something with dvdrecord, or do I have to apply the kernel 
>patch to make it work? There's a push to use stock kernels for this, so 
>I very much don't want to choose that fight, slow and CPU intensive is 
>better than commiting to providing custom kernels indefinitely.

You miss that this program is illegal, it violates the GPL.

This program is unmaintained... 

Jörg

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 EMail:[EMAIL PROTECTED] (home) Jörg Schilling D-13353 Berlin
   [EMAIL PROTECTED](uni)  If you don't have iso-8859-1
   [EMAIL PROTECTED](work) chars I am J"org Schilling
 URL:  http://www.fokus.fraunhofer.de/usr/schilling ftp://ftp.berlios.de/pub/schily


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Re: LG GSA-4040B and dvdwrite

2003-11-28 Thread Karl-Heinz Herrmann
On Mon, 24 Nov 2003 13:20:05 +0100
Ole Jacob Taraldset <[EMAIL PROTECTED]> wrote:

> "dvdrecord -v dev=0,0,0 -dao -dummy /iso/shrike-i386-disc1.iso", but
> nothing is written and I'm note sure what the error is. The disk is a
> DVD-R.

Well "-dummy" tells it to simulate without actually writing.

K.-H.



Re: LG GSA-4040B and dvdwrite

2003-11-28 Thread Karl-Heinz Herrmann
On Mon, 24 Nov 2003 13:20:05 +0100
Ole Jacob Taraldset <[EMAIL PROTECTED]> wrote:

> "dvdrecord -v dev=0,0,0 -dao -dummy /iso/shrike-i386-disc1.iso", but
> nothing is written and I'm note sure what the error is. The disk is a
> DVD-R.

Well "-dummy" tells it to simulate without actually writing.

K.-H.


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Re: TEAC DV-W50D

2003-11-28 Thread Catalin BOIE
> >> Plase name the Pioneer model number...
> > How can I can get it?
>
> Via google search for example. It's the same as the A06.

Yes, seems that is A06.
Anybody tried to flash it with a Pioneer firmware?

Thanks!

>
> regards
> Markus
>
>
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Re: TEAC DV-W50D

2003-11-28 Thread Catalin BOIE
> If you can"t, describe the features in less than 100 characters.
:)
DVD-ROM (single and dual layer), DVD-Video, DVD-Audio, DVD-R (Vers 2.00),
DVD-RW (Ver 1.0 + 1.1), DVD+R (Ver 1.0 + 1.1), DVD+RW (Ver 1.2), DVD-RAM
DVD-R: DAO, Incremental recording, multi-border recording
DVD-RW: Restricted overwriting
DVD+R: Incremental recording
DVD+RW: Random recording

Thanks!

>
> Jörg
>
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>

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