Чистка CD-RW

Пытаюсь почистить CD-RW исползуя K3B и GnjmeDaker. Выдает следщущее

cdrecord command:
-----------------------
/usr/bin/cdrecord -v gracetime=2 dev=/dev/hdd speed=48 -tao driveropts=burnfree -eject blank=fast -force

cdrecord
-----------------------
/usr/bin/cdrecord: Cannot allocate memory. WARNING: Cannot do mlockall(2).

/usr/bin/cdrecord: WARNING: This causes a high risk for buffer underruns.
/usr/bin/cdrecord: Operation not permitted. WARNING: Cannot set RR-scheduler
/usr/bin/cdrecord: Permission denied. WARNING: Cannot set priority using setpriority().
/usr/bin/cdrecord: WARNING: This causes a high risk for buffer underruns.
scsidev: '/dev/hdd'
devname: '/dev/hdd'
scsibus: -2 target: -2 lun: -2
Error trying to open /dev/hdd exclusively ... retrying in 1 second.
Error trying to open /dev/hdd exclusively ... retrying in 1 second.
Error trying to open /dev/hdd exclusively ... retrying in 1 second.
Error trying to open /dev/hdd exclusively ... retrying in 1 second.
Error trying to open /dev/hdd exclusively ... retrying in 1 second.
Error trying to open /dev/hdd exclusively ... retrying in 1 second.
Error trying to open /dev/hdd exclusively ... retrying in 1 second.
Error trying to open /dev/hdd exclusively ... retrying in 1 second.
Error trying to open /dev/hdd exclusively ... retrying in 1 second.
Error trying to open /dev/hdd exclusively ... retrying in 1 second.
/usr/bin/cdrecord: Device or resource busy. Cannot open '/dev/hdd'. Cannot open SCSI driver.
/usr/bin/cdrecord: For possible targets try 'cdrecord -scanbus'. Make sure you are root.
/usr/bin/cdrecord: For possible transport specifiers try 'cdrecord dev=help'.
Cdrecord-Clone 2.01.01a03-dvd (i686-pc-linux-gnu) Copyright (C) 1995-2005 Jörg Schilling
NOTE: This version contains the OSS DVD extensions for cdrtools and thus may
have bugs related to DVD issues that are not present in the original
cdrtools. Please send bug reports or support requests to
http://bugzilla.redhat.com/bugzilla The original cdrtools author should
not be bothered with problems in this version.
TOC Type: 1 = CD-ROM

Но если пробую записать не чистый диск через Nautilus то на подтверждение диск очищается


Под ROOT чистит только GnjmeDaker и Nautilus???????