Nautilus: can't disable "Perform action on blank disc when inserted" & DVD writing troubles

[Patrick]

Hi all,

I have two issues: in preferences -> Removable Drives and Media
Preferences I disabled everything and even removed the "nautilus
--no-desktop burn:" line. But when I insert a blank DVD Nautilus still
grabs it and displays the DVD icon on the Desktop called "Blank DVD-RW
Disc". I don't know if this is related to my other problem: when I try
to burn an iso image with e.g. K3B it doesn't work because K3B can't get
an exclusive lock on the NEC 2510A DVD+/-RW drive. K3B's debugging
output is:

Devices
-----------------------
_NEC DVD_RW ND-2510A 2.18 (/dev/hdc, ) at /media/cdrecorder [CD-R;
CD-RW; CD-ROM; DVD-ROM; DVD-R; DVD-RW; DVD+R; DVD+RW] [DVD-ROM; DVD-R
Sequential; DVD-RW Restricted Overwrite; DVD-RW Sequential; DVD+RW; DVD
+R; DVD+R Double Layer; CD-ROM; CD-R; CD-RW] [SAO; TAO; RAW; RAW/R96R]

System
-----------------------
K3b Version: 0.11.23
KDE Version: 3.4.1-0.fc4.1 Red Hat
QT Version:  3.3.4
Kernel:      2.6.12-1.1398_FC4

growisofs
-----------------------
Executing 'builtin_dd
if=/home/patrick/Downloads/0_CentOS/CentOS-4.1-i386-binDVD1/CentOS-4.1-i386-binDVD1.iso of=/dev/hdc obs=32k seek=0'
/dev/hdc: "Current Write Speed" is 4.0x1385KBps.
:-! "COMMAND SEQUENCE ERROR"@LBA=0h. Is media being read?
:-! the LUN appears to be stuck at 0h, retrying in 5 secs...
:-! "COMMAND SEQUENCE ERROR"@LBA=0h. Is media being read?
:-! the LUN appears to be stuck at 0h, retrying in 5 secs...
         0/2215698432 ( 0.0%) @0x, remaining ??:??
         0/2215698432 ( 0.0%) @0x, remaining ??:??
:-! "COMMAND SEQUENCE ERROR"@LBA=0h. Is media being read?
:-! the LUN appears to be stuck at 0h, retrying in 5 secs...
         0/2215698432 ( 0.0%) @0x, remaining ??:??
and on and on and on...

growisofs comand used by K3B:
-----------------------------
/usr/bin/growisofs
-Z /dev/hdc=/home/patrick/Downloads/0_CentOS/CentOS-4.1-i386-binDVD1/CentOS-4.1-i386-binDVD1.iso -use-the-force-luke=notray -use-the-force-luke=tty -dvd-compat -speed=4

Using the command above from the command line gives the same error. In
runlevel 1 & 3 it also does not work and I have also tried the last 3
kernels. Strangely I can burn the iso image fine with the command:
cdrecord -v -dao <iso image>  Now why would it work with cdrecord and
not with growisofs?

So does anyone have an idea how I can force Nautilus not to touch my
DVD's ever when it's configured to not touch them? And how I can fix the
problem with K3B/growisofs not working? Tips much appreciated!

Regards,
Patrick