Description of problem:
I try to erase dvd-rw media with k3b but if fails to do so and gives error that
it can't unmount it.

Version-Release number of selected component (if applicable):


How reproducible:
every time

Steps to Reproduce:
1. put dvd-rw in drive, wait to settle down and automounts
2. close nautilus windows that poped-up
3. start k3b and issue format dvd command
  
Actual results:
k3b format fails and gives error

Expected results:
to have emply dvd-rw for burning new stuff to it

Additional info:

Here is the k3b log:

System
-----------------------
K3b Version: 0.12.17

KDE Version: 3.5.7-0.1.fc6 Fedora
QT Version:  3.3.8
Kernel:      2.6.20-1.2962.fc6
Devices
-----------------------
HL-DT-ST DVDRAM GSA-4080N 0X21 (/dev/scd0, ) at  [CD-R; CD-RW; CD-ROM; DVD-ROM;
DVD-RAM; DVD-R; DVD-RW; DVD+R; DVD+RW] [DVD-ROM; DVD-R Sequential; DVD-RAM;
DVD-RW Restricted Overwrite; DVD-RW Sequential; DVD+RW; DVD+R; CD-ROM; CD-R;
CD-RW] [SAO; TAO; RAW; SAO/R96P; SAO/R96R; RAW/R16; RAW/R96P; RAW/R96R;
Restricted Overwrite]

dvd+rw-format
-----------------------
* BD/DVD±RW/-RAM format utility by <appro.se>, version 7.0.
* 4.7GB DVD-RW media in Sequential mode detected.
umount: /media/moove is not in the fstab (and you are not root)
:-( unable to proceed with format: Device or resource busy

dvd+rw-format command:
-----------------------
/usr/bin/dvd+rw-format -gui -blank /dev/scd0