CD Images aren't burned well

Thanks for taking the time to help make Ubuntu better.
I've tested the results on Gutsy with 2 different media, one RW that needed to be blanked and another fresh CD. Both times were done with the right clicking and selecting "Burn Image" as described. Are you able to provide any backtrace from the error?

Thanks.

It fails with CD-R or CD-RW media, i don't know how to provide more information about error, if i run nautilus-cd-burner from console, it doesn't show any information and also fails.
With all other burning programs works perfectly as k3b or brasero.
My drive is BenQ DD DW1620.

Are you able to provide any backtrace information regarding the process? Some information is here, regarding how to take the proper steps to make a report that may help us narrow down the problem a little more.
https://wiki.ubuntu.com/Backtrace

Regards,
Justin

could you run gconf-editor, set /apps/nautilus-cd-burner/debug to true and run nautilus-cd-burner to get a debug log when triggering the warning?

I launched nautilus-cd-burner from terminal with debugin enabled and the same error hapened.
I attach text file with terminal output.

I have tryed a backtrace with gdb.
I lauched the program with this:

rafael@rafadeb-gutsy:~$ gdb nautilus-cd-burner 2>&1 | tee gdb-nautilus-cd-burner.txt
GNU gdb 6.6-debian
Copyright (C) 2006 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you are
welcome to change it and/or distribute copies of it under certain conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB. Type "show warranty" for details.
This GDB was configured as "i486-linux-gnu"...
(no debugging symbols found)
Using host libthread_db library "/lib/tls/i686/cmov/libthread_db.so.1".
(gdb) handle SIG33 pass nostop noprint
Signal Stop Print Pass to program Description
SIG33 No No Yes Real-time event 33
(gdb) set pagination 0
(gdb) run --source-iso=/media/datos/'Imagenes CD'/gutsy-kde-desktop-i386.iso
Starting program: /usr/bin/nautilus-cd-burner --source-iso=/media/datos/'Imagenes CD'/gutsy-kde-desktop-i386.iso
(no debugging symbols found)
Failed to read a valid object file image from memory.
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)

Watch run arguments and watch line 14 of attached file.

I have made an experiment, i burned a Kubuntu 7.10 image obtaining the same error, but i booted it and y did a integration CD check, and test resulted with no erros.

looks like a duplicate of bug #86431