Can'r Read DVD-R using 4167B

vbimport

#1

Hello,

I just want to report the fact that my new 4167B
cannot read a pre-burned DVD-R format (pre-burned
DVD+R reads without problems).

My system is Linux, and the following message appears
in the log when I attempt to mount a DVD-R disk (the
4167B is /dev/hde):

Uniform CD-ROM driver Revision: 3.20
attempt to access beyond end of device
hde: rw=0, want=68, limit=4
isofs_fill_super: bread failed, dev=hde, iso_blknum=16, block=16

Not being familiar with the driver mechanism, I really
don’t know what this means, but if any others can
decipher this message then please share your insight.

So far I’ve noticed noticed no other read/write problems
with this drive. I’ve also tried the capacitor trick across
the +5V rail – as mentioned in a previous thread --but it
does not alleviate the problem.

Could this be a firmware issue? I will also submit this
report directly to LG Electronics.

Andrew Kalten


#2

What brand were those DVD-R discs that could not be read?


#3

The brand is Imation DVD-R.

Imation also makes the DVD+R that can be read.

I’ve tried reading the DVD-R under MS Windows 2000
and experienced the same problem with the 4167B.
But Linux gives a clear error message while MS Windows
does not.

Originally the disks were burned with a Plextor 712.
I acquired the LG 4167B mainly for its DVD-RAM
capability.

Andrew Kalten


#4

Can you download DVD Identifier, and pop one each of those Imation - and +Rs in your PC?

Maybe they were made by different manufacturers, and the LG isn’t too fond of one of them…

:slight_smile:


#5

DVD Identify shows the following:

DVD-R

Ritek Corp.
RITEKG03

DVD+R

Ricoh Co.
RICOHJPN-R00-001

The disks are made by different manufcturers.

In the future I’ll just avoid Imation, but the firmware
should be modified to accomodate these different
brands. Right now I have D13.

Andrew Kalten


#6

See if this affects only those Imation DVD-R discs. It may simply be that your LG writer won’t read those Ritek discs. If you have any other DVD-R discs burned on your Plextor, try those instead. Firmware updates seldom address reading issues. Normally they deal with write issues instead.