Error While Buring For Ubuntu 12.04 Live CD

While burning DVD it ejected automatically and prompted for Error ""An error occurred while writing to disc".
Log -
Checking session consistency (brasero_burn_check_session_consistency brasero-burn.c:1744)
BraseroBurnURI called brasero_job_get_action
BraseroBurnURI called brasero_job_get_action
BraseroBurnURI called brasero_job_set_output_size_for_current_track
BraseroBurnURI stopping
BraseroBurnURI called brasero_job_get_action
BraseroBurnURI called brasero_job_get_session_output_size
BraseroBurnURI output set (IMAGE) image = /tmp/brasero_tmp_XUQJBX.bin toc = none
BraseroBurnURI called brasero_job_get_session_output_size
BraseroBurnURI called brasero_job_get_action
BraseroBurnURI called brasero_job_get_current_track
BraseroBurnURI burn:// URI found burn:///ubuntu-12.04.4-desktop-i386.iso
BraseroBurnURI called brasero_job_set_current_action
BraseroBurnURI called brasero_job_get_current_track
BraseroBurnURI called brasero_job_add_track
BraseroBurnURI called brasero_job_get_action
BraseroBurnURI Finished track successfully
BraseroBurnURI stopping
BraseroLocalTrack called brasero_job_get_action
BraseroLocalTrack called brasero_job_get_action
BraseroLocalTrack called brasero_job_set_output_size_for_current_track
BraseroLocalTrack stopping
BraseroLocalTrack called brasero_job_get_action
BraseroLocalTrack called brasero_job_get_session_output_size
BraseroLocalTrack output set (IMAGE) image = /tmp/brasero_tmp_7STHBX.bin toc = none
BraseroLocalTrack called brasero_job_get_session_output_size
BraseroLocalTrack called brasero_job_get_action
BraseroLocalTrack called brasero_job_get_current_track
BraseroLocalTrack no remote URIs
BraseroLocalTrack stopping
BraseroChecksumImage called brasero_job_get_current_track
BraseroChecksumImage called brasero_job_get_action
BraseroChecksumImage called brasero_job_get_flags
BraseroChecksumImage called brasero_job_get_action
BraseroChecksumImage called brasero_job_get_action
BraseroChecksumImage called brasero_job_get_fd_in
BraseroChecksumImage called brasero_job_set_output_size_for_current_track
BraseroChecksumImage stopping
BraseroChecksumImage called brasero_job_get_current_track
BraseroChecksumImage called brasero_job_get_action
BraseroChecksumImage called brasero_job_get_flags
BraseroChecksumImage called brasero_job_get_action
BraseroChecksumImage called brasero_job_get_session_output_size
BraseroChecksumImage output set (IMAGE) image = /tmp/brasero_tmp_ADIHBX.bin toc = none
BraseroChecksumImage called brasero_job_get_session_output_size
BraseroChecksumImage called brasero_job_get_action
BraseroChecksumImage called brasero_job_get_action
BraseroChecksumImage called brasero_job_get_current_track
BraseroChecksumImage called brasero_job_get_input_type
BraseroChecksumImage called brasero_job_set_current_action
BraseroChecksumImage called brasero_job_get_fd_in
BraseroChecksumImage called brasero_job_get_current_track
BraseroChecksumImage called brasero_job_get_current_track
BraseroChecksumImage Starting checksuming file /home/pavankumar/Downloads/ubuntu-12.04.4-desktop-i386.iso (size = 766509056)
BraseroChecksumImage called brasero_job_get_fd_out
BraseroChecksumImage called brasero_job_get_current_track
BraseroChecksumImage Setting new checksum (type = 2) 14ad92270218a8925d802b3d3b6e140f ((null) before)
BraseroChecksumImage Finished track successfully
BraseroChecksumImage stopping
BraseroLibburn called brasero_job_get_action
BraseroLibburn called brasero_job_get_action
BraseroLibburn unsupported operation
BraseroLibburn deactivating
BraseroLibburn called brasero_job_get_action
BraseroLibburn called brasero_job_get_action
BraseroLibburn called brasero_job_get_device
BraseroLibburn Drive (/dev/sr0) init result = 1
BraseroLibburn called brasero_job_get_flags
BraseroLibburn called brasero_job_get_media
BraseroLibburn called brasero_job_get_fd_in
BraseroLibburn called brasero_job_get_tracks
BraseroLibburn Setting multi 0
BraseroLibburn Setting burnproof 1
BraseroLibburn Setting dummy 0
BraseroLibburn called brasero_job_get_session_output_size
BraseroLibburn called brasero_job_set_current_action
BraseroLibburn burn_drive_convert_fs_adr( /dev/sr0 )
BraseroLibburn Writing
BraseroLibburn called brasero_job_set_dangerous
BraseroLibburn called brasero_job_set_current_action
BraseroLibburn called brasero_job_set_current_action
BraseroLibburn burn_drive_is_enumerable_adr( /dev/sr0 ) is true
BraseroLibburn called brasero_job_set_current_action
BraseroLibburn Async START UNIT succeeded after 0.1 seconds
BraseroLibburn Closing
BraseroLibburn called brasero_job_set_dangerous
BraseroLibburn called brasero_job_set_current_action
BraseroLibburn mmc_set_streaming: end_lba=2297887 , r=11080 , w=11080
BraseroLibburn Allocating buffer via mmap()
BraseroLibburn Writing
BraseroLibburn dvd/bd Profile= 11h , obs= 32768 , obs_pad= 1
BraseroLibburn Something went wrong
BraseroLibburn called brasero_job_error
BraseroLibburn finished with an error
BraseroLibburn asked to stop because of an error
 error = 15
 message = "An error occurred while writing to disc"
BraseroLibburn stopping
Session error : An error occurred while writing to disc (brasero_burn_record brasero-burn.c:2862)