Ubuntu 12.04 + Gravadora DVD LG 4164B, não grava cd nem dvd

[hazan]

prezados, sou novo em ubuntu, ocorre que aqui nao consigo gravar cd ou dvd de forma alguma, sempre dando erro.Usando utilitário de unidade, com obejetivo de teste, da-se esse erro : Error benchmarking: helper exited with exit code 1: Device /dev/sr0 is too slow to benchmark.

Gostaria de um isntrução, pois nem por reza esse trem funciona.

Grato.

#/dev/discs/disc0/disc {
#   mult_sect_io = 16
#   write_cache = off
#   spindown_time = 240
#}

#/dev/discs/disc1/disc {
#   mult_sect_io = 32
#   spindown_time = 36
#   write_cache = off
#}

#/dev/cdroms/cdrom0 {
#   dma = on         
#   interrupt_unmask = on
#   io32_support = 0
#}

#/dev/hda {
#   mult_sect_io = 16
#   write_cache = off
#   dma = on
#}

henrique@Root:~$ sudo hdparm /dev/sda
[sudo] password for henrique:

/dev/sda:
multcount     = 16 (on)
IO_support    =  0 (default)
readonly      =  0 (off)
readahead     = 256 (on)
geometry      = 19457/255/63, sectors = 312581808, start = 0
henrique@Root:~$ sudo hdparm -i /dev/sda

/dev/sda:

Model=FB160C4081, FwRev=HPF0, SerialNo=9RX0F56B
Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs RotSpdTol>.5% }
RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=4
BuffType=unknown, BuffSize=8192kB, MaxMultSect=16, MultSect=16
CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=312581808
IORDY=on/off, tPIO={min:120,w/IORDY:120}, tDMA={min:120,rec:120}
PIO modes:  pio0 pio1 pio2 pio3 pio4
DMA modes:  mdma0 mdma1 mdma2
UDMA modes: udma0 udma1 udma2 udma3 udma4 *udma5
AdvancedPM=no WriteCache=disabled
Drive conforms to: unknown:  ATA/ATAPI-1,2,3,4,5,6,7

henrique@Root:~$ sudo mount -t iso9660 /dev/sr0 /media/cdrom
mount: dispositivo de blocos /dev/sr0 é protegido contra gravação; montando somente para leitura
mount: wrong fs type, bad option, bad superblock on /dev/sr0,
       missing codepage or helper program, or other error
       (poderia isso estar acontecendo porque o dispositivo IDE que você está usando é ide-scsi
então você precisaria de sr0 ou sda ou SO?)
       Em alguns casos informações úteis são encontradas no syslog - tente
       "dmesg | tail" ou algo do tipo

henrique@Root:~$ dmesg | tail
[  273.464586] sr 2:0:1:0: [sr0]  Sense Key : Illegal Request [current]
[  273.464590] sr 2:0:1:0: [sr0]  Add. Sense: Illegal mode for this track
[  273.464595] sr 2:0:1:0: [sr0] CDB: Read(10): 28 00 00 00 00 00 00 00 01 00
[  273.464602] end_request: I/O error, dev sr0, sector 0
[  497.533922] sr 2:0:1:0: [sr0]  Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[  497.533928] sr 2:0:1:0: [sr0]  Sense Key : Illegal Request [current]
[  497.533933] sr 2:0:1:0: [sr0]  Add. Sense: Illegal mode for this track
[  497.533940] sr 2:0:1:0: [sr0] CDB: Read(10): 28 00 00 00 00 10 00 00 01 00
[  497.533948] end_request: I/O error, dev sr0, sector 64
[  497.534031] isofs_fill_super: bread failed, dev=sr0, iso_blknum=16, block=16
henrique@Root:~$

sudo gedit /etc/fstab

# /etc/fstab: static file system information.
#
# Use 'blkid' to print the universally unique identifier for a
# device; this may be used with UUID= as a more robust way to name devices
# that works even if disks are added and removed. See fstab(5).
#
# <file system> <mount point>   <type>  <options>       <dump>  <pass>
proc            /proc           proc    nodev,noexec,nosuid 0       0
# / was on /dev/sda1 during installation
UUID=005cd065-3c91-4291-9929-224b8714dec6 /               ext4    errors=remount-ro 0       1
# swap was on /dev/sda5 during installation
UUID=dc2fc873-8454-4692-81d4-ecc712520ae6 none            swap    sw              0       0
/dev/fd0        /media/floppy0  auto    rw,user,noauto,exec,utf8 0       0

[hazan]

alguma luz ?
até hj nao consegui gravar cds ou dvds.......le, reproduz, apenas nao grava