FC5 DVD data project with k3b

[antonio montagnani]

If I try to prepare a Data DVD+RW I get these warning and project is
aborted (as standard user):

System
-----------------------
K3b Version: 0.12.14

KDE Version: 3.5.1-2.3 Red Hat
QT Version:  3.3.5
Kernel:      2.6.16-1.2080_FC5
Devices
-----------------------
HP CD-Writer+ 7500 1.0a (/dev/hdd, ) at  [CD-R; CD-RW; CD-ROM] [Error]
[SAO; TAO]

HL-DT-ST DVDRAM GSA-4163B A103 (/dev/hdc, ) at  [CD-R; CD-RW; CD-ROM;
DVD-ROM; DVD-RAM; DVD-R; DVD-RW; DVD+R; DVD+RW; DVD+R DL] [DVD-ROM;
DVD-R sequenziale; DVD-RAM; DVD-RW a riscrittura limitata; DVD-RW
sequenziale; DVD+RW; DVD+R; DVD+R a doppio strato; CD-ROM; CD-R;
CD-RW] [SAO; TAO; RAW; SAO/R96P; SAO/R96R; RAW/R16; RAW/R96P;
RAW/R96R; Riscrittura limitata]
Used versions
-----------------------
growisofs: 5.21
mkisofs: 2.1.1a03

growisofs
-----------------------
Error trying to open /dev/hdc exclusively ... retrying in 1 second.
Error trying to open /dev/hdc exclusively ... retrying in 1 second.
Error trying to open /dev/hdc exclusively ... retrying in 1 second.
Error trying to open /dev/hdc exclusively ... retrying in 1 second.
Error trying to open /dev/hdc exclusively ... retrying in 1 second.
Error trying to open /dev/hdc exclusively ... retrying in 1 second.
Error trying to open /dev/hdc exclusively ... retrying in 1 second.
Error trying to open /dev/hdc exclusively ... retrying in 1 second.
Error trying to open /dev/hdc exclusively ... retrying in 1 second.
Error trying to open /dev/hdc exclusively ... retrying in 1 second.
Trying to open without locking.
umount: /media/VIVA_ZAPATERO is not in the fstab (and you are not root)
:-( /dev/hdc: unable to proceed with recording: unable to unmount

growisofs command:
-----------------------
/usr/bin/growisofs -M /dev/hdc -use-the-force-luke=notray
-use-the-force-luke=tty -speed=4 -gui -graft-points -volid K3b data
project -volset  -appid K3B THE CD KREATOR (C) 1998-2005 SEBASTIAN
TRUEG AND THE K3B TEAM -publisher  -preparer  -sysid LINUX
-volset-size 1 -volset-seqno 1 -sort /tmp/kde-antonio/k3bTqVyub.tmp
-rational-rock -hide-list /tmp/kde-antonio/k3bnB6XHa.tmp -joliet
-hide-joliet-list /tmp/kde-antonio/k3bVtIRRb.tmp
-full-iso9660-filenames -iso-level 2 -path-list
/tmp/kde-antonio/k3buu5Evb.tmp

mkisofs
-----------------------
INFO: UTF-8 character encoding detected by locale settings.
 Assuming UTF-8 encoded filenames on source filesystem,
 use -input-charset to override.
 34.68% done, estimate finish Sun Apr  9 12:16:03 2006
 68.22% done, estimate finish Sun Apr  9 12:16:03 2006
Total translation table size: 0
Total rockridge attributes bytes: 1016
Total directory bytes: 4096
Path table size(bytes): 48
Max brk space used 0
1482 extents written (2 MB)

mkisofs command:
-----------------------
/usr/bin/mkisofs -gui -graft-points -volid K3b data project -volset 
-appid K3B THE CD KREATOR (C) 1998-2005 SEBASTIAN TRUEG AND THE K3B
TEAM -publisher  -preparer  -sysid LINUX -volset-size 1 -volset-seqno
1 -sort /tmp/kde-antonio/k3bXMTfVa.tmp -rational-rock -hide-list
/tmp/kde-antonio/k3bq5N2oa.tmp -joliet -hide-joliet-list
/tmp/kde-antonio/k3bmD0V7a.tmp -full-iso9660-filenames -iso-level 2
-path-list /tmp/kde-antonio/k3b4Rddpb.tmp

Any help???

--
Antonio Montagnani
Skype : antoniomontag