Nero UDF & UDF/ISO confusion

I have tried various techniques of making an incremental backup CD-R
with Nero 5.5.10.54 using UDF and UDF/ISO formats. I mainly want to
backup digital camera photos as months go by, filling up one CD-R at a
time.

I have "Multisession" checked and everything seems to copy fine
(different files on different days, with the original Nero compilation
saved each time to retain the layout), but many of the files end up
corrupted on the CD-R even though the sizes and names are accurate.
They become unreadable, even with an app like ISOBuster. When I open a
UDF CD-R in ISOBuster I see many different sessions, some with corrupt
files, some without. Usually the corrupted files begin after a certain
date, whereas previous sessions seemed to save with no errors. I
really don't understand the format.

Is Nero UDF or UDF/ISO actually _designed_ to be used for incremental
backup like Nero InCD or Roxio Direct-CD? Years ago, Direct-CD never
gave me problems but I've gone the Nero route for various reasons.

Several CD-RWs formatted with Nero InCD have crashed on me (could be
InCD, could be the brand), which is why I've been trying to use UDF or
UDF/ISO as a substitute. Is there a good FAQ for this somewhere
instead of the scattered forum questions I've found? Nero's program
help is very limited.

K2

Use ISO format multisession with Nero to ensure that your files are
preserved. This is the most robust of the data formats.

InCD is flaky and generally considered less reliable than Direct CD. Unless
they have changed it recently, InCD will not work with CDR discs.

I would not recommend the use of CDRW discs for archival purposes - or, come
to that, for any purpose that is not involved with testing.

--

Graham Mayor






K2 wrote:
I have tried various techniques of making an incremental backup CD-R
with Nero 5.5.10.54 using UDF and UDF/ISO formats. I mainly want to
backup digital camera photos as months go by, filling up one CD-R at a
time.

I have "Multisession" checked and everything seems to copy fine
(different files on different days, with the original Nero compilation
saved each time to retain the layout), but many of the files end up
corrupted on the CD-R even though the sizes and names are accurate.
They become unreadable, even with an app like ISOBuster. When I open a
UDF CD-R in ISOBuster I see many different sessions, some with corrupt
files, some without. Usually the corrupted files begin after a certain
date, whereas previous sessions seemed to save with no errors. I
really don't understand the format.

Is Nero UDF or UDF/ISO actually _designed_ to be used for incremental
backup like Nero InCD or Roxio Direct-CD? Years ago, Direct-CD never
gave me problems but I've gone the Nero route for various reasons.

Several CD-RWs formatted with Nero InCD have crashed on me (could be
InCD, could be the brand), which is why I've been trying to use UDF or
UDF/ISO as a substitute. Is there a good FAQ for this somewhere
instead of the scattered forum questions I've found? Nero's program
help is very limited.

K2

On Sat, 17 Apr 2004 17:33:12 +0100, "Graham Mayor"
wrote:

Use ISO format multisession with Nero to ensure that your files are
preserved. This is the most robust of the data formats.

I assumed for some reason that UDF was superior for multisession work,
but I can see that the same options are in the "plain" ISO format.
I'll take your advice there.

InCD is flaky and generally considered less reliable than Direct CD. Unless
they have changed it recently, InCD will not work with CDR discs.

InCD is still for CD-RWs only. It worked fine up until 450-500 MB for
several rotating Memorex CD-RWs I was using. Then, they suddenly
became unreadable. I had trusted InCD until that point, but I don't
know if it was just a brand problem. I recently bought some TDK CD-RWs
but the initial InCD formatting process stalled on a test disc after
45 minutes. Not sure what the cause is.

I would not recommend the use of CDRW discs for archival purposes - or, come
to that, for any purpose that is not involved with testing.

I've always followed that rule, too.

K2

In article ,
says...
On Sat, 17 Apr 2004 17:33:12 +0100, "Graham Mayor"
wrote:

Use ISO format multisession with Nero to ensure that your files are
preserved. This is the most robust of the data formats.

I assumed for some reason that UDF was superior for multisession work,
but I can see that the same options are in the "plain" ISO format.
I'll take your advice there.

InCD is flaky and generally considered less reliable than Direct CD. Unless
they have changed it recently, InCD will not work with CDR discs.

InCD is still for CD-RWs only. It worked fine up until 450-500 MB for
several rotating Memorex CD-RWs I was using. Then, they suddenly
became unreadable. I had trusted InCD until that point, but I don't
know if it was just a brand problem. I recently bought some TDK CD-RWs
but the initial InCD formatting process stalled on a test disc after
45 minutes. Not sure what the cause is.

I would not recommend the use of CDRW discs for archival purposes - or, come
to that, for any purpose that is not involved with testing.

I've always followed that rule, too.

K2


Until purchasing a DVDRW player, and really doing a lot fo research
about packet writing (InCD or Roxios Direct CD or Stomp's Intsntat
CD/DVD, I though packet writing was great!

However, it trouble med that people on this board, a lot more
knoweledgeable than I, were very opposed to it and didn't trust the
integrity of the data.

I got Nero and stared making ISO disks. They are always readabler -
everytime I trty it somehwere else, they too can read it.

When you install an ISO disk i the drive, it finds its files
approximately 3 times as fast as any udf file I've ever used. The
experience of the immediate usability of the ISO disk, and the loss by
corruption on another disk on which packet writing was used, has
convinced me to try to avoid packet writing.

Louise

Louise

.. --------------------------------------
Graham Mayor, were you also born with
"Scam Artist" emblazoned on your face?
--------------------------------------

Graham Mayor (MS MVP) spewed:

I would not recommend the use of CDRW discs for archival purposes - or, come
to that, for any purpose that is not involved with testing.

According to Mikey, cd-rw is good enough for BACKUP, of all things, even
when combined with the supposedly *inherently* flaky, fragile, faulty,
unreliable packet writing format!

=======================
From: Mike Richter (Acraptec Shill)
Date: 9/1/99

You may back up ... to a DCD-formatted erasable.
=======================

Don't you believe Mikey's words, Mayor (MS MVP)?


BTW, is the distinction between Specification, Standard, Format and
Implemention beyond comprehension of MS MVPs?

.. --------------------------------------
Mike Richter, were you born with
"Scam Artist" emblazoned on your face?
--------------------------------------
(Mike Richter, any Material Connection w/ Roxio?)

K2 wrote:

I have tried various techniques of making an incremental backup CD-R
with Nero 5.5.10.54 using UDF and UDF/ISO formats. I mainly want to
backup digital camera photos as months go by, filling up one CD-R at a
time.

Look up "Data CD (Multisession)" in Nero Help.

I have "Multisession" checked and everything seems to copy fine
(different files on different days, with the original Nero compilation
saved each time to retain the layout), but many of the files end up
corrupted on the CD-R even though the sizes and names are accurate.
They become unreadable, even with an app like ISOBuster. When I open a
UDF CD-R in ISOBuster I see many different sessions, some with corrupt
files, some without. Usually the corrupted files begin after a certain
date, whereas previous sessions seemed to save with no errors. I
really don't understand the format.

Is Nero UDF or UDF/ISO actually _designed_ to be used for incremental
backup

From Nero Help:

UDF Format
Creating a UDF CD

Please note that Nero does not yet support Multisession UDF-CDs and
that therefore UDF or UDF-Bridge Sessions must be written on blank
CDs.

like Nero InCD or Roxio Direct-CD? Years ago, Direct-CD never
gave me problems but I've gone the Nero route for various reasons.

Several CD-RWs formatted with Nero InCD have crashed on me (could be
InCD, could be the brand), which is why I've been trying to use UDF or
UDF/ISO as a substitute. Is there a good FAQ for this somewhere
instead of the scattered forum questions I've found? Nero's program
help is very limited.

Many InCD troubles are caused by conflicts with Roxio junks, like winxp
built-in burn function, WMP burn-plugin, left-over DirectCD files, etc.

Check out (S11) of 'KCK' InCD trouble guide:

http://www.cdrlabs.com/phpBB/viewtopic.php?t=9572 (XP)
http://www.cdrlabs.com/phpBB/viewtopic.php?t=9997 (W2K)
http://www.cdrlabs.com/phpBB/viewtopic.php?t=9597 (98x)

--------------------------------------
Mike Richter, were you born with
"Scam Artist" emblazoned on your face?
--------------------------------------
(Mike Richter, any Material Connection w/ Roxio?)

K2 wrote:

I have tried various techniques of making an incremental backup CD-R
with Nero 5.5.10.54 using UDF and UDF/ISO formats. I mainly want to
backup digital camera photos as months go by, filling up one CD-R at a
time.

Look up "Data CD (Multisession)" in Nero Help.

I have "Multisession" checked and everything seems to copy fine
(different files on different days, with the original Nero compilation
saved each time to retain the layout), but many of the files end up
corrupted on the CD-R even though the sizes and names are accurate.
They become unreadable, even with an app like ISOBuster. When I open a
UDF CD-R in ISOBuster I see many different sessions, some with corrupt
files, some without. Usually the corrupted files begin after a certain
date, whereas previous sessions seemed to save with no errors. I
really don't understand the format.

Is Nero UDF or UDF/ISO actually _designed_ to be used for incremental
backup

From Nero Help:

UDF Format
Creating a UDF CD

Please note that Nero does not yet support Multisession UDF-CDs and
that therefore UDF or UDF-Bridge Sessions must be written on blank
CDs.

Just burned a couple of sessions in both CD-ROM (UDF) and CD-ROM
(UDF/ISO) without any problems - despite what Help says - and the files
were all readable. Are you using quality media?


like Nero InCD or Roxio Direct-CD? Years ago, Direct-CD never
gave me problems but I've gone the Nero route for various reasons.

Several CD-RWs formatted with Nero InCD have crashed on me (could be
InCD, could be the brand), which is why I've been trying to use UDF or
UDF/ISO as a substitute. Is there a good FAQ for this somewhere
instead of the scattered forum questions I've found? Nero's program
help is very limited.

Many InCD troubles are caused by conflicts with Roxio junks, like winxp
built-in burn function, WMP burn-plugin, left-over DirectCD files, etc.

Check out (S11) of 'KCK' InCD trouble guide:

http://www.cdrlabs.com/phpBB/viewtopic.php?t=9572 (XP)
http://www.cdrlabs.com/phpBB/viewtopic.php?t=9997 (W2K)
http://www.cdrlabs.com/phpBB/viewtopic.php?t=9597 (98x)

On Sat, 17 Apr 2004 20:19:31 GMT, smh wrote:

Please note that Nero does not yet support Multisession UDF-CDs and
that therefore UDF or UDF-Bridge Sessions must be written on blank
CDs.

Just burned a couple of sessions in both CD-ROM (UDF) and CD-ROM
(UDF/ISO) without any problems - despite what Help says - and the files
were all readable. Are you using quality media?

For a few weeks I thought the same thing; multisessions seemed to work
fine. Then I noticed recent files were getting corrupted, even though
the burning seemed to go fine and they appeared intact from their size
and names. I'd give it more time if I were you. Be sure you actually
try to launch the files you've copied.

K2

.. --------------------------------------
Mike Richter, were you born with
"Scam Artist" emblazoned on your face?
--------------------------------------
(Mike Richter, any Material Connection w/ Roxio?)

K2 wrote:
smh wrote:

Please note that Nero does not yet support Multisession UDF-CDs and
that therefore UDF or UDF-Bridge Sessions must be written on blank
CDs.

Just burned a couple of sessions in both CD-ROM (UDF) and CD-ROM
(UDF/ISO) without any problems - despite what Help says - and the files
were all readable. Are you using quality media?

For a few weeks I thought the same thing; multisessions seemed to work
fine. Then I noticed recent files were getting corrupted, even though
the burning seemed to go fine and they appeared intact from their size
and names. I'd give it more time if I were you. Be sure you actually
try to launch the files you've copied.

Sounds more like a bad burn rather than problems with file system. Try
quality media? Burn at slower speed? Burn in Mode 1 (for UDF/ISO)?

"K2" wrote in message
...
On Sat, 17 Apr 2004 20:19:31 GMT, smh wrote:

Please note that Nero does not yet support Multisession UDF-CDs and
that therefore UDF or UDF-Bridge Sessions must be written on blank
CDs.

Just burned a couple of sessions in both CD-ROM (UDF) and CD-ROM
(UDF/ISO) without any problems - despite what Help says - and the files
were all readable. Are you using quality media?

For a few weeks I thought the same thing; multisessions seemed to work
fine. Then I noticed recent files were getting corrupted, even though
the burning seemed to go fine and they appeared intact from their size
and names. I'd give it more time if I were you. Be sure you actually
try to launch the files you've copied.

K2

Hi

Probably adding to the confusion here but where does *Mt Rainer* (don't
think I've used the correct term here?) fit into the picture? I thought this
was designed to improve the effectiveness of Packet Writing to CDRW's ?

Regards

BillL