From terminal this is the log I get:

(brasero:28349): BraseroMedia-DEBUG: At brasero-medium-monitor.c:436: Polling for drives
(brasero:28349): BraseroMedia-DEBUG: At brasero-medium-monitor.c:446: Found 1 drives
(brasero:28349): BraseroMedia-DEBUG: At brasero-medium-monitor.c:449: Probing /org/freedesktop/Hal/devices/storage_model_DVDRW_LH_18A1P
(brasero:28349): BraseroMedia-DEBUG: At brasero-drive.c:960: Drive caps are 639
(brasero:28349): BraseroMedia-DEBUG: At brasero-drive.c:981: Drive /dev/sr0 has bus,target,lun = 6 0 0
(brasero:28349): BraseroMedia-DEBUG: At brasero-drive.c:831: Contents changed
(brasero:28349): BraseroMedia-DEBUG: At brasero-drive.c:831: Contents changed
(brasero:28349): BraseroMedia-DEBUG: At brasero-drive.c:846: Medium inserted
(brasero:28349): BraseroMedia-DEBUG: At brasero-medium.c:2983: Trying to open device /dev/sr0
(brasero:28349): BraseroMedia-DEBUG: At brasero-medium.c:3004: Open () succeeded
(brasero:28349): BraseroMedia-DEBUG: At brasero-medium.c:3019: Device ready
(brasero:28349): BraseroMedia-DEBUG: At brasero-medium.c:2877: Initializing information for medium in DVDRW LH-18A1P
(brasero:28349): BraseroMedia-DEBUG: At brasero-medium.c:2330: Retrieving media profile
(brasero:28349): BraseroMedia-DEBUG: At brasero-medium.c:1458: Retrieving media available speeds
(brasero:28349): BraseroMedia-DEBUG: At brasero-medium.c:1286: Retrieving speed (Get Performance)
(brasero:28349): BraseroMedia-DEBUG: At scsi-get-performance.c:127: Unaligned data (8) setting to max (2048)
(brasero:28349): BraseroMedia-DEBUG: At scsi-get-performance.c:202: Sizes mismatch asked 8 / received 72
Re-issuing the command with received size
(brasero:28349): BraseroMedia-DEBUG: At scsi-get-performance.c:127: Unaligned data (72) setting to max (2048)
(brasero:28349): BraseroMedia-DEBUG: At brasero-medium.c:1301: Successfully retrieved a header: size 72, address 0x8436b98
(brasero:28349): BraseroMedia-DEBUG: At brasero-medium.c:1305: Updated header size = 72
(brasero:28349): BraseroMedia-DEBUG: At brasero-medium.c:1318: Got 4 descriptor(s)
(brasero:28349): BraseroMedia-DEBUG: At brasero-medium.c:1332: Descriptor n° 0, address = 0x8436ba0
(brasero:28349): BraseroMedia-DEBUG: At brasero-medium.c:1339: RD = 1411 / WRT = 7056
(brasero:28349): BraseroMedia-DEBUG: At brasero-medium.c:1332: Descriptor n° 1, address = 0x8436bb0
(brasero:28349): BraseroMedia-DEBUG: At brasero-medium.c:1339: RD = 1411 / WRT = 5645
(brasero:28349): BraseroMedia-DEBUG: At brasero-medium.c:1332: Descriptor n° 2, address = 0x8436bc0
(brasero:28349): BraseroMedia-DEBUG: At brasero-medium.c:1339: RD = 1411 / WRT = 4234
(brasero:28349): BraseroMedia-DEBUG: At brasero-medium.c:1332: Descriptor n° 3, address = 0x8436bd0
(brasero:28349): BraseroMedia-DEBUG: At brasero-medium.c:1339: RD = 1411 / WRT = 2822
(brasero:28349): BraseroMedia-DEBUG: At brasero-medium.c:1348: Maximum Speed (mmc3) 7056
(brasero:28349): BraseroMedia-DEBUG: At brasero-medium.c:2254: Retrieving media status
(brasero:28349): BraseroMedia-DEBUG: At brasero-medium.c:2218: Empty media
(brasero:28349): BraseroMedia-DEBUG: At brasero-medium.c:2224: First open track 1
(brasero:28349): BraseroMedia-DEBUG: At brasero-medium.c:1879: Retrieving NWA and leadout information
(brasero:28349): BraseroMedia-DEBUG: At brasero-medium.c:1805: Setting write mode page
(brasero:28349): BraseroMedia-DEBUG: At scsi-mode-sense.c:125: Getting page size
(brasero:28349): BraseroMedia-DEBUG: At scsi-mode-sense.c:159: Getting page (size = 60)
(brasero:28349): BraseroMedia-DEBUG: At brasero-medium.c:1821: Former write type 1
(brasero:28349): BraseroMedia-DEBUG: At brasero-medium.c:1822: Former track mode 4
(brasero:28349): BraseroMedia-DEBUG: At brasero-medium.c:1823: Former data block type 8
(brasero:28349): BraseroMedia-DEBUG: At brasero-medium.c:1948: Next Writable Address is 0
(brasero:28349): BraseroMedia-DEBUG: At brasero-medium.c:1955: Free blocks 359847
(brasero:28349): BraseroMedia-DEBUG: At brasero-medium.c:1972: Leadout: start = 0 size = 359847
(brasero:28349): BraseroMedia-DEBUG: At brasero-medium.c:924: Checking simulate (CD TAO)
(brasero:28349): BraseroMedia-DEBUG: At brasero-medium.c:960: Checking simulate (CD SAO)
(brasero:28349): BraseroMedia-DEBUG: At brasero-medium.c:1085: Tested simulation 1 1, burnfree 1
(brasero:28349): BraseroMedia-DEBUG: At brasero-medium.c:2928: media is CD W blank 
(brasero:28349): BraseroMedia-DEBUG: At brasero-volume.c:103: Found volume /dev/sr0
(brasero:28349): BraseroMedia-DEBUG: At brasero-volume.c:103: Found volume /dev/sr0
(brasero:28349): BraseroMedia-DEBUG: At brasero-volume.c:103: Found volume /dev/sr0
(brasero:28349): BraseroMedia-DEBUG: At brasero-volume.c:103: Found volume /dev/sr0
(brasero:28349): BraseroMedia-DEBUG: At brasero-volume.c:103: Found volume /dev/sr0
(brasero:28349): BraseroMedia-DEBUG: At brasero-volume.c:198: Mount point is (null)
(brasero:28349): BraseroMedia-DEBUG: At brasero-drive.c:433: Device locked