I have the exact same problem on my acer Aspire 5315. ubuntu karmic 9.10 64, brasero 2.28.2 i can't burn iso images. the brasero log is practicalli the same. first checks, and everythig is allright, but when tries to burn this error comes up BraseroWodim stderr: Errno: 5 (Input/output error), write_g1 scsi sendcmd: no error here is the complete log: Checking session consistency (brasero_burn_check_session_consistency brasero-burn.c:1848) 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_QRIX4U.bin toc = none BraseroBurnURI called brasero_job_get_action BraseroBurnURI called brasero_job_get_current_track BraseroBurnURI no burn:// URI found 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_VVJX4U.bin toc = none 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 There is a checksum already 0 BraseroWodim called brasero_job_get_action BraseroWodim getting varg BraseroWodim called brasero_job_get_action BraseroWodim got varg: BraseroWodim deactivating BraseroWodim called brasero_job_get_action BraseroWodim getting varg BraseroWodim called brasero_job_get_action BraseroWodim called brasero_job_get_device BraseroWodim called brasero_job_get_flags BraseroWodim called brasero_job_get_speed BraseroWodim called brasero_job_get_flags BraseroWodim called brasero_job_get_input_type BraseroWodim called brasero_job_get_fd_in BraseroWodim called brasero_job_get_current_track BraseroWodim called brasero_job_set_current_action BraseroWodim got varg: wodim -v dev=/dev/sr0 speed=10 -multi fs=16m -data -nopad /home/luks/Descargas/slax-6.1.2.iso BraseroWodim Launching command BraseroWodim called brasero_job_get_fd_out BraseroWodim stderr: wodim: No write mode specified. BraseroWodim called brasero_job_get_flags BraseroWodim stderr: wodim: Asuming -tao mode. BraseroWodim called brasero_job_get_flags BraseroWodim stderr: wodim: Future versions of wodim may have different drive dependent defaults. BraseroWodim called brasero_job_get_flags BraseroWodim stderr: wodim: Operation not permitted. Warning: Cannot raise RLIMIT_MEMLOCK limits.scsidev: '/dev/sr0' BraseroWodim called brasero_job_get_flags BraseroWodim stderr: devname: '/dev/sr0' BraseroWodim called brasero_job_get_flags BraseroWodim stderr: scsibus: -2 target: -2 lun: -2 BraseroWodim called brasero_job_get_flags BraseroWodim stderr: Linux sg driver version: 3.5.27 BraseroWodim called brasero_job_get_flags BraseroWodim stderr: Wodim version: 1.1.9 BraseroWodim called brasero_job_get_flags BraseroWodim stderr: SCSI buffer size: 64512 BraseroWodim called brasero_job_get_flags BraseroWodim stderr: Beginning DMA speed test. Set CDR_NODMATEST environment variable if device BraseroWodim called brasero_job_get_flags BraseroWodim stderr: communication breaks or freezes immediately after that. BraseroWodim called brasero_job_get_flags BraseroWodim stdout: TOC Type: 1 = CD-ROM BraseroWodim stdout: Device type : Removable CD-ROM BraseroWodim stdout: Version : 5 BraseroWodim stdout: Response Format: 2 BraseroWodim stdout: Capabilities : BraseroWodim stdout: Vendor_info : 'HL-DT-ST' BraseroWodim stdout: Identification : 'DVDRAM GSA-T20N ' BraseroWodim stdout: Revision : 'WP03' BraseroWodim stdout: Device seems to be: Generic mmc2 DVD-R/DVD-RW. BraseroWodim stdout: Current: 0x0009 (CD-R) BraseroWodim stdout: Profile: 0x0012 (DVD-RAM) BraseroWodim stdout: Profile: 0x0011 (DVD-R sequential recording) BraseroWodim stdout: Profile: 0x0015 (DVD-R/DL sequential recording) BraseroWodim stdout: Profile: 0x0016 (DVD-R/DL layer jump recording) BraseroWodim stdout: Profile: 0x0014 (DVD-RW sequential recording) BraseroWodim stdout: Profile: 0x0013 (DVD-RW restricted overwrite) BraseroWodim stdout: Profile: 0x001A (DVD+RW) BraseroWodim stdout: Profile: 0x001B (DVD+R) BraseroWodim stdout: Profile: 0x002B (DVD+R/DL) BraseroWodim stdout: Profile: 0x0010 (DVD-ROM) BraseroWodim stdout: Profile: 0x0009 (CD-R) (current) BraseroWodim stdout: Profile: 0x000A (CD-RW) BraseroWodim stdout: Profile: 0x0008 (CD-ROM) (current) BraseroWodim stdout: Profile: 0x0002 (Removable disk) BraseroWodim stdout: Using generic SCSI-3/mmc CD-R/CD-RW driver (mmc_cdr). BraseroWodim stdout: Driver flags : MMC-3 SWABAUDIO BURNFREE BraseroWodim stdout: Supported modes: TAO PACKET SAO SAO/R96P SAO/R96R RAW/R16 RAW/R96P RAW/R96R BraseroWodim stdout: Drive buf size : 1053696 = 1029 KB BraseroWodim stdout: Drive DMA Speed: 12195 kB/s 69x CD 8x DVD BraseroWodim stdout: FIFO size : 16777216 = 16384 KB BraseroWodim stderr: Speed set to 1764 KB/s BraseroWodim called brasero_job_get_flags BraseroWodim stdout: Track 01: data 200 MB BraseroWodim stdout: Total size: 229 MB (22:45.66) = 102425 sectors BraseroWodim stdout: Lout start: 230 MB (22:47/50) = 102425 sectors BraseroWodim stdout: Current Secsize: 2048 BraseroWodim stdout: ATIP info from disk: BraseroWodim stdout: Indicated writing power: 5 BraseroWodim stdout: Is not unrestricted BraseroWodim stdout: Is not erasable BraseroWodim stdout: Disk sub type: Medium Type B, low Beta category (B-) (4) BraseroWodim stdout: ATIP start of lead in: -11607 (97:27/18) BraseroWodim stdout: ATIP start of lead out: 359849 (79:59/74) BraseroWodim stdout: Disk type: Short strategy type (Phthalocyanine or similar) BraseroWodim stdout: Manuf. index: 18 BraseroWodim stdout: Manufacturer: Plasmon Data systems Ltd. BraseroWodim stdout: Blocks total: 359849 Blocks current: 359849 Blocks remaining: 257424 BraseroWodim stdout: Starting to write CD/DVD at speed 10.0 in real TAO mode for multi session. BraseroWodim stdout: Last chance to quit, starting real write in 4 seconds. BraseroWodim called brasero_job_set_dangerous BraseroWodim stdout:  BraseroWodim stdout:  BraseroWodim stdout:  BraseroWodim stdout:  BraseroWodim stdout:  BraseroWodim stdout:  BraseroWodim stdout:  BraseroWodim stdout:  BraseroWodim stdout:  BraseroWodim stdout:  BraseroWodim stdout:  BraseroWodim stdout:  BraseroWodim stdout: 3 seconds. BraseroWodim stdout:  BraseroWodim stdout:  BraseroWodim stdout:  BraseroWodim stdout:  BraseroWodim stdout:  BraseroWodim stdout:  BraseroWodim stdout:  BraseroWodim stdout:  BraseroWodim stdout:  BraseroWodim stdout:  BraseroWodim stdout:  BraseroWodim stdout:  BraseroWodim stdout: 2 seconds. BraseroWodim stdout:  BraseroWodim stdout:  BraseroWodim stdout:  BraseroWodim stdout:  BraseroWodim stdout:  BraseroWodim stdout:  BraseroWodim stdout:  BraseroWodim stdout:  BraseroWodim stdout:  BraseroWodim stdout:  BraseroWodim stdout:  BraseroWodim stdout:  BraseroWodim stdout: 1 seconds. 0 seconds. Operation starts. BraseroWodim stdout: Waiting for reader process to fill input buffer ... input buffer ready. BraseroWodim stdout: Performing OPC... BraseroWodim stdout: Starting new track at sector: 0 BraseroWodim stdout: BraseroWodim stderr: Errno: 5 (Input/output error), write_g1 scsi sendcmd: no error BraseroWodim called brasero_job_get_flags BraseroWodim stderr: CDB: 2A 00 00 00 00 00 00 00 1F 00 BraseroWodim called brasero_job_get_flags BraseroWodim stderr: status: 0x2 (CHECK CONDITION) BraseroWodim called brasero_job_get_flags BraseroWodim stderr: Sense Bytes: 72 0B 00 00 00 00 00 0E 09 0C 00 00 00 02 00 00 BraseroWodim called brasero_job_get_flags BraseroWodim stderr: Sense Key: 0x0 No Additional Sense, Segment 11 BraseroWodim called brasero_job_get_flags BraseroWodim stderr: Sense Code: 0x00 Qual 0x02 (end-of-partition/medium detected) Fru 0x0 BraseroWodim called brasero_job_get_flags BraseroWodim stderr: Sense flags: Blk 0 (not valid) BraseroWodim called brasero_job_get_flags BraseroWodim stderr: cmd finished after 41.846s timeout 40s BraseroWodim called brasero_job_get_flags BraseroWodim stderr: wodim: A write error occured. BraseroWodim called brasero_job_get_flags BraseroWodim stderr: wodim: Please properly read the error message above. BraseroWodim called brasero_job_get_flags BraseroWodim stdout: Track 01: 0 of 200 MB written. BraseroWodim stdout: write track data: error after 0 bytes BraseroWodim stdout: Writing time: 51.003s BraseroWodim stdout: Average write speed 26.8x. BraseroWodim stdout: Fixating... BraseroWodim called brasero_job_get_action BraseroWodim called brasero_job_set_current_action BraseroWodim stdout: Fixating time: 27.590s BraseroWodim stderr: wodim: fifo had 255 puts and 1 gets. BraseroWodim called brasero_job_get_flags BraseroWodim stdout: HUP BraseroWodim stderr: wodim: fifo was 0 times empty and 0 times full, min fill was 100%. BraseroWodim called brasero_job_get_flags BraseroWodim stderr: HUP BraseroWodim process finished with status 254 BraseroWodim called brasero_job_error BraseroWodim finished with an error BraseroWodim asked to stop because of an error error = 0 message = "no message" BraseroWodim stopping BraseroWodim got killed Session error : unknown (brasero_burn_record brasero-burn.c:2811)