On Sun, 2007-12-02 at 17:26 -0700, Alan Dayley wrote:
> Vaughn Treude wrote:
> > 
> > Craig,
> > Thanks for your reply.  Yes, it's old.  I was hoping (perhaps in vain) 
> > that I could solve this with some kind of mode switch. Or maybe this 
> > drive is on its way out. I'm always afraid that upgrading will break my 
> > other stuff.  :-)
> > 
> >  From dmesg, I see these over and over again:
> > ATAPI device hdc:
> >    Error: Not ready -- (Sense key=0x02)
> >    (reserved error code) -- (asc=0x30, ascq=0x02)
> >    The failed "Read Subchannel" packet command was:
> >    "42 02 40 01 00 00 00 00 10 00 00 00 00 00 00 00 "
> > cdrom: This disc doesn't have any tracks I recognize!
> > 
> > Same stuff in syslog.
> > 
> > Puzzling, because this is an empty DVD, it's not SUPPOSED to have any 
> > tracks it recognizes!  :-)
> 
> I this case the first suspect is the burner and it's firmware, not the
> system software.  All recordable optical media is not equal.  Not all
> burners are equal either.
> 
> This part:
> 
> >    Error: Not ready -- (Sense key=0x02)
> >    (reserved error code) -- (asc=0x30, ascq=0x02)
> 
> is an error code in 3 bytes.  Taken together they mean:
> 2 / 30 / 02      CANNOT READ MEDIUM . INCOMPATIBLE FORMAT
> (as defined at http://www.isobuster.com/help.php?help=305  Not an
> official source but corroborates with others around.)
> 
> I think the drive cannot read the media you are giving it.  Does the
> drive still burn the other brand?  You could test that if you have the
> other brand blanks laying around.
> 
> Sometimes a burner firmware update can help, if you can find one.  Make
> sure you found the right firmware and updater, though.  It is usually
> easy to do such an update but there is a risk of "bricking" the burner.
----
Not counting DVD-RAM, there are 4 different types of DVD media for
writing...

DVD -R
DVD +R
DVD -RW
DVD +RW

not all can be used in all DVD recorders.

Craig

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