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[Bug 867570] Re: direct burning of data-cd results in unreadable disk

To: desktop-packages@xxxxxxxxxxxxxxxxxxx
From: Torsten Casselt <867570@xxxxxxxxxxxxxxxxxx>
Date: Tue, 04 Oct 2011 15:03:59 -0000
Reply-to: Bug 867570 <867570@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx
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https://bugs.launchpad.net/bugs/867570

Title:
  direct burning of data-cd results in unreadable disk

Status in “brasero” package in Ubuntu:
  New

Bug description:
  If you burn a data-cd and choose the first option, "burn directly, do
  not save on hard disk", (I don't know how it is labeled in English, my
  GUI is German) brasero will burn and tell that it did successfully,
  but the disk is unreadable.

  If you disable and burn with first creating an image, the disk is
  okay.

  I tried it with audio-cd, it is not affected.

  Appeared on two laptops, mine being a Toshiba C650D and my
  girlfriend's being a Packard Bell TK85. Workaround worked on both
  laptops.

  Please test on other systems to confirm!

  
  Trying to read disk:

  /var/log/syslog remains quiet if you wait for automount. Trying "mount
  -t iso9660 /dev/dvd /media/test" results in error-message: ISOFS:
  Unable to identify CD-ROM format.

  Trying "mount -t iso9660 -o loop /dev/dvd /media/test" results in
  longer message:

  Oct  4 16:45:12 isk-Satellite-C650D kernel: [18210.494266] sr 1:0:0:0: [sr0] Unhandled sense code
  Oct  4 16:45:12 isk-Satellite-C650D kernel: [18210.494272] sr 1:0:0:0: [sr0]  Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
  Oct  4 16:45:12 isk-Satellite-C650D kernel: [18210.494277] sr 1:0:0:0: [sr0]  Sense Key : Medium Error [current] 
  Oct  4 16:45:12 isk-Satellite-C650D kernel: [18210.494283] sr 1:0:0:0: [sr0]  Add. Sense: Unrecovered read error
  Oct  4 16:45:12 isk-Satellite-C650D kernel: [18210.494289] sr 1:0:0:0: [sr0] CDB: Read(10): 28 00 00 01 bb 1e 00 00 01 00
  Oct  4 16:45:12 isk-Satellite-C650D kernel: [18210.494299] end_request: I/O error, dev sr0, sector 453752
  Oct  4 16:45:12 isk-Satellite-C650D kernel: [18210.494306] Buffer I/O error on device sr0, logical block 113438
  Oct  4 16:45:14 isk-Satellite-C650D kernel: [18211.607798] sr 1:0:0:0: [sr0] Unhandled sense code
  Oct  4 16:45:14 isk-Satellite-C650D kernel: [18211.607809] sr 1:0:0:0: [sr0]  Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
  Oct  4 16:45:14 isk-Satellite-C650D kernel: [18211.607818] sr 1:0:0:0: [sr0]  Sense Key : Medium Error [current] 
  Oct  4 16:45:14 isk-Satellite-C650D kernel: [18211.607827] sr 1:0:0:0: [sr0]  Add. Sense: Unrecovered read error
  Oct  4 16:45:14 isk-Satellite-C650D kernel: [18211.607837] sr 1:0:0:0: [sr0] CDB: Read(10): 28 00 00 01 bb 1e 00 00 01 00
  Oct  4 16:45:14 isk-Satellite-C650D kernel: [18211.607855] end_request: I/O error, dev sr0, sector 453752
  Oct  4 16:45:14 isk-Satellite-C650D kernel: [18211.607866] Buffer I/O error on device sr0, logical block 113438
  Oct  4 16:45:14 isk-Satellite-C650D kernel: [18211.607930] Buffer I/O error on device loop0, logical block 226876
  Oct  4 16:45:15 isk-Satellite-C650D kernel: [18212.721635] sr 1:0:0:0: [sr0] Unhandled sense code
  Oct  4 16:45:15 isk-Satellite-C650D kernel: [18212.721641] sr 1:0:0:0: [sr0]  Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
  Oct  4 16:45:15 isk-Satellite-C650D kernel: [18212.721645] sr 1:0:0:0: [sr0]  Sense Key : Medium Error [current] 
  Oct  4 16:45:15 isk-Satellite-C650D kernel: [18212.721650] sr 1:0:0:0: [sr0]  Add. Sense: Unrecovered read error
  Oct  4 16:45:15 isk-Satellite-C650D kernel: [18212.721655] sr 1:0:0:0: [sr0] CDB: Read(10): 28 00 00 01 bb 1e 00 00 01 00
  Oct  4 16:45:15 isk-Satellite-C650D kernel: [18212.721663] end_request: I/O error, dev sr0, sector 453752
  Oct  4 16:45:15 isk-Satellite-C650D kernel: [18212.721670] Buffer I/O error on device sr0, logical block 113438
  Oct  4 16:45:15 isk-Satellite-C650D kernel: [18212.721717] Buffer I/O error on device loop0, logical block 226877
  Oct  4 16:45:16 isk-Satellite-C650D kernel: [18213.835885] sr 1:0:0:0: [sr0] Unhandled sense code
  Oct  4 16:45:16 isk-Satellite-C650D kernel: [18213.835890] sr 1:0:0:0: [sr0]  Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
  Oct  4 16:45:16 isk-Satellite-C650D kernel: [18213.835894] sr 1:0:0:0: [sr0]  Sense Key : Medium Error [current] 
  Oct  4 16:45:16 isk-Satellite-C650D kernel: [18213.835898] sr 1:0:0:0: [sr0]  Add. Sense: Unrecovered read error
  Oct  4 16:45:16 isk-Satellite-C650D kernel: [18213.835905] sr 1:0:0:0: [sr0] CDB: Read(10): 28 00 00 01 bb 1e 00 00 01 00
  Oct  4 16:45:16 isk-Satellite-C650D kernel: [18213.835912] end_request: I/O error, dev sr0, sector 453752
  Oct  4 16:45:16 isk-Satellite-C650D kernel: [18213.835917] Buffer I/O error on device sr0, logical block 113438
  Oct  4 16:45:16 isk-Satellite-C650D kernel: [18213.835979] Buffer I/O error on device loop0, logical block 226876
  Oct  4 16:45:17 isk-Satellite-C650D kernel: [18214.949295] sr 1:0:0:0: [sr0] Unhandled sense code
  Oct  4 16:45:17 isk-Satellite-C650D kernel: [18214.949301] sr 1:0:0:0: [sr0]  Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
  Oct  4 16:45:17 isk-Satellite-C650D kernel: [18214.949306] sr 1:0:0:0: [sr0]  Sense Key : Medium Error [current] 
  Oct  4 16:45:17 isk-Satellite-C650D kernel: [18214.949310] sr 1:0:0:0: [sr0]  Add. Sense: Unrecovered read error
  Oct  4 16:45:17 isk-Satellite-C650D kernel: [18214.949315] sr 1:0:0:0: [sr0] CDB: Read(10): 28 00 00 01 bb 1e 00 00 01 00
  Oct  4 16:45:17 isk-Satellite-C650D kernel: [18214.949322] end_request: I/O error, dev sr0, sector 453752
  Oct  4 16:45:17 isk-Satellite-C650D kernel: [18214.949328] Buffer I/O error on device sr0, logical block 113438
  Oct  4 16:45:17 isk-Satellite-C650D kernel: [18214.949386] Buffer I/O error on device loop0, logical block 226877
  Oct  4 16:45:18 isk-Satellite-C650D kernel: [18216.063526] sr 1:0:0:0: [sr0] Unhandled sense code
  Oct  4 16:45:18 isk-Satellite-C650D kernel: [18216.063538] sr 1:0:0:0: [sr0]  Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
  Oct  4 16:45:18 isk-Satellite-C650D kernel: [18216.063548] sr 1:0:0:0: [sr0]  Sense Key : Medium Error [current] 
  Oct  4 16:45:18 isk-Satellite-C650D kernel: [18216.063559] sr 1:0:0:0: [sr0]  Add. Sense: Unrecovered read error
  Oct  4 16:45:18 isk-Satellite-C650D kernel: [18216.063570] sr 1:0:0:0: [sr0] CDB: Read(10): 28 00 00 01 bb 1e 00 00 01 00
  Oct  4 16:45:18 isk-Satellite-C650D kernel: [18216.063588] end_request: I/O error, dev sr0, sector 453752
  Oct  4 16:45:18 isk-Satellite-C650D kernel: [18216.063600] Buffer I/O error on device sr0, logical block 113438
  Oct  4 16:45:19 isk-Satellite-C650D kernel: [18217.176839] sr 1:0:0:0: [sr0] Unhandled sense code
  Oct  4 16:45:19 isk-Satellite-C650D kernel: [18217.176849] sr 1:0:0:0: [sr0]  Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
  Oct  4 16:45:19 isk-Satellite-C650D kernel: [18217.176859] sr 1:0:0:0: [sr0]  Sense Key : Medium Error [current] 
  Oct  4 16:45:19 isk-Satellite-C650D kernel: [18217.176869] sr 1:0:0:0: [sr0]  Add. Sense: Unrecovered read error
  Oct  4 16:45:19 isk-Satellite-C650D kernel: [18217.176880] sr 1:0:0:0: [sr0] CDB: Read(10): 28 00 00 01 bb 1e 00 00 01 00
  Oct  4 16:45:19 isk-Satellite-C650D kernel: [18217.176899] end_request: I/O error, dev sr0, sector 453752
  Oct  4 16:45:19 isk-Satellite-C650D kernel: [18217.176909] quiet_error: 1 callbacks suppressed
  Oct  4 16:45:19 isk-Satellite-C650D kernel: [18217.176916] Buffer I/O error on device sr0, logical block 113438
  Oct  4 16:45:19 isk-Satellite-C650D kernel: [18217.176999] Buffer I/O error on device loop0, logical block 226877
  Oct  4 16:45:20 isk-Satellite-C650D kernel: [18218.290749] sr 1:0:0:0: [sr0] Unhandled sense code
  Oct  4 16:45:20 isk-Satellite-C650D kernel: [18218.290754] sr 1:0:0:0: [sr0]  Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
  Oct  4 16:45:20 isk-Satellite-C650D kernel: [18218.290758] sr 1:0:0:0: [sr0]  Sense Key : Medium Error [current] 
  Oct  4 16:45:20 isk-Satellite-C650D kernel: [18218.290762] sr 1:0:0:0: [sr0]  Add. Sense: Unrecovered read error
  Oct  4 16:45:20 isk-Satellite-C650D kernel: [18218.290766] sr 1:0:0:0: [sr0] CDB: Read(10): 28 00 00 01 bb 1e 00 00 01 00
  Oct  4 16:45:20 isk-Satellite-C650D kernel: [18218.290774] end_request: I/O error, dev sr0, sector 453752
  Oct  4 16:45:20 isk-Satellite-C650D kernel: [18218.290781] Buffer I/O error on device sr0, logical block 113438
  Oct  4 16:45:20 isk-Satellite-C650D kernel: [18218.290838] Buffer I/O error on device loop0, logical block 226876
  Oct  4 16:45:21 isk-Satellite-C650D kernel: [18219.452159] sr 1:0:0:0: [sr0] Unhandled sense code
  Oct  4 16:45:21 isk-Satellite-C650D kernel: [18219.452169] sr 1:0:0:0: [sr0]  Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
  Oct  4 16:45:21 isk-Satellite-C650D kernel: [18219.452179] sr 1:0:0:0: [sr0]  Sense Key : Medium Error [current] 
  Oct  4 16:45:21 isk-Satellite-C650D kernel: [18219.452189] sr 1:0:0:0: [sr0]  Add. Sense: Unrecovered read error
  Oct  4 16:45:21 isk-Satellite-C650D kernel: [18219.452199] sr 1:0:0:0: [sr0] CDB: Read(10): 28 00 00 01 bb 1e 00 00 01 00
  Oct  4 16:45:21 isk-Satellite-C650D kernel: [18219.452216] end_request: I/O error, dev sr0, sector 453752
  Oct  4 16:45:21 isk-Satellite-C650D kernel: [18219.452226] Buffer I/O error on device sr0, logical block 113438
  Oct  4 16:45:21 isk-Satellite-C650D kernel: [18219.452299] Buffer I/O error on device loop0, logical block 226877
  Oct  4 16:45:23 isk-Satellite-C650D kernel: [18220.565641] sr 1:0:0:0: [sr0] Unhandled sense code
  Oct  4 16:45:23 isk-Satellite-C650D kernel: [18220.565651] sr 1:0:0:0: [sr0]  Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
  Oct  4 16:45:23 isk-Satellite-C650D kernel: [18220.565661] sr 1:0:0:0: [sr0]  Sense Key : Medium Error [current] 
  Oct  4 16:45:23 isk-Satellite-C650D kernel: [18220.565672] sr 1:0:0:0: [sr0]  Add. Sense: Unrecovered read error
  Oct  4 16:45:23 isk-Satellite-C650D kernel: [18220.565682] sr 1:0:0:0: [sr0] CDB: Read(10): 28 00 00 01 bb 1e 00 00 01 00
  Oct  4 16:45:23 isk-Satellite-C650D kernel: [18220.565700] end_request: I/O error, dev sr0, sector 453752
  Oct  4 16:45:23 isk-Satellite-C650D kernel: [18220.565713] Buffer I/O error on device sr0, logical block 113438
  Oct  4 16:45:23 isk-Satellite-C650D kernel: [18220.565783] Buffer I/O error on device loop0, logical block 226876
  Oct  4 16:45:24 isk-Satellite-C650D kernel: [18221.679897] sr 1:0:0:0: [sr0] Unhandled sense code
  Oct  4 16:45:24 isk-Satellite-C650D kernel: [18221.679906] sr 1:0:0:0: [sr0]  Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
  Oct  4 16:45:24 isk-Satellite-C650D kernel: [18221.679911] sr 1:0:0:0: [sr0]  Sense Key : Medium Error [current] 
  Oct  4 16:45:24 isk-Satellite-C650D kernel: [18221.679917] sr 1:0:0:0: [sr0]  Add. Sense: Unrecovered read error
  Oct  4 16:45:24 isk-Satellite-C650D kernel: [18221.679924] sr 1:0:0:0: [sr0] CDB: Read(10): 28 00 00 01 bb 1e 00 00 01 00
  Oct  4 16:45:24 isk-Satellite-C650D kernel: [18221.679933] end_request: I/O error, dev sr0, sector 453752
  Oct  4 16:45:24 isk-Satellite-C650D kernel: [18221.679942] Buffer I/O error on device sr0, logical block 113438
  Oct  4 16:45:24 isk-Satellite-C650D kernel: [18221.680050] Buffer I/O error on device loop0, logical block 226877
  Oct  4 16:45:25 isk-Satellite-C650D kernel: [18222.793745] sr 1:0:0:0: [sr0] Unhandled sense code
  Oct  4 16:45:25 isk-Satellite-C650D kernel: [18222.793750] sr 1:0:0:0: [sr0]  Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
  Oct  4 16:45:25 isk-Satellite-C650D kernel: [18222.793753] sr 1:0:0:0: [sr0]  Sense Key : Medium Error [current] 
  Oct  4 16:45:25 isk-Satellite-C650D kernel: [18222.793758] sr 1:0:0:0: [sr0]  Add. Sense: Unrecovered read error
  Oct  4 16:45:25 isk-Satellite-C650D kernel: [18222.793762] sr 1:0:0:0: [sr0] CDB: Read(10): 28 00 00 01 bb 1e 00 00 01 00
  Oct  4 16:45:25 isk-Satellite-C650D kernel: [18222.793769] end_request: I/O error, dev sr0, sector 453752
  Oct  4 16:45:25 isk-Satellite-C650D kernel: [18222.793775] Buffer I/O error on device sr0, logical block 113438
  Oct  4 16:45:25 isk-Satellite-C650D kernel: [18222.793817] Buffer I/O error on device loop0, logical block 226876
  Oct  4 16:45:26 isk-Satellite-C650D kernel: [18223.908477] sr 1:0:0:0: [sr0] Unhandled sense code
  Oct  4 16:45:26 isk-Satellite-C650D kernel: [18223.908487] sr 1:0:0:0: [sr0]  Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
  Oct  4 16:45:26 isk-Satellite-C650D kernel: [18223.908496] sr 1:0:0:0: [sr0]  Sense Key : Medium Error [current] 
  Oct  4 16:45:26 isk-Satellite-C650D kernel: [18223.908506] sr 1:0:0:0: [sr0]  Add. Sense: Unrecovered read error
  Oct  4 16:45:26 isk-Satellite-C650D kernel: [18223.908516] sr 1:0:0:0: [sr0] CDB: Read(10): 28 00 00 01 bb 1e 00 00 01 00
  Oct  4 16:45:26 isk-Satellite-C650D kernel: [18223.908534] end_request: I/O error, dev sr0, sector 453752
  Oct  4 16:45:26 isk-Satellite-C650D kernel: [18223.908545] Buffer I/O error on device sr0, logical block 113438
  Oct  4 16:45:26 isk-Satellite-C650D kernel: [18223.908615] Buffer I/O error on device loop0, logical block 226877
  Oct  4 16:45:27 isk-Satellite-C650D kernel: [18225.021866] sr 1:0:0:0: [sr0] Unhandled sense code
  Oct  4 16:45:27 isk-Satellite-C650D kernel: [18225.021876] sr 1:0:0:0: [sr0]  Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
  Oct  4 16:45:27 isk-Satellite-C650D kernel: [18225.021885] sr 1:0:0:0: [sr0]  Sense Key : Medium Error [current] 
  Oct  4 16:45:27 isk-Satellite-C650D kernel: [18225.021895] sr 1:0:0:0: [sr0]  Add. Sense: Unrecovered read error
  Oct  4 16:45:27 isk-Satellite-C650D kernel: [18225.021905] sr 1:0:0:0: [sr0] CDB: Read(10): 28 00 00 01 bb 1e 00 00 01 00
  Oct  4 16:45:27 isk-Satellite-C650D kernel: [18225.021924] end_request: I/O error, dev sr0, sector 453752
  Oct  4 16:45:27 isk-Satellite-C650D kernel: [18225.021935] Buffer I/O error on device sr0, logical block 113438
  Oct  4 16:45:27 isk-Satellite-C650D kernel: [18225.021986] Buffer I/O error on device loop0, logical block 226876
  Oct  4 16:45:28 isk-Satellite-C650D kernel: [18226.136471] sr 1:0:0:0: [sr0] Unhandled sense code
  Oct  4 16:45:28 isk-Satellite-C650D kernel: [18226.136481] sr 1:0:0:0: [sr0]  Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
  Oct  4 16:45:28 isk-Satellite-C650D kernel: [18226.136490] sr 1:0:0:0: [sr0]  Sense Key : Medium Error [current] 
  Oct  4 16:45:28 isk-Satellite-C650D kernel: [18226.136500] sr 1:0:0:0: [sr0]  Add. Sense: Unrecovered read error
  Oct  4 16:45:28 isk-Satellite-C650D kernel: [18226.136510] sr 1:0:0:0: [sr0] CDB: Read(10): 28 00 00 01 bb 1e 00 00 01 00
  Oct  4 16:45:28 isk-Satellite-C650D kernel: [18226.136528] end_request: I/O error, dev sr0, sector 453752
  Oct  4 16:45:28 isk-Satellite-C650D kernel: [18226.136539] Buffer I/O error on device sr0, logical block 113438
  Oct  4 16:45:28 isk-Satellite-C650D kernel: [18226.136608] Buffer I/O error on device loop0, logical block 226877
  Oct  4 16:45:32 isk-Satellite-C650D kernel: [18230.139083] sr 1:0:0:0: [sr0] Unhandled sense code
  Oct  4 16:45:32 isk-Satellite-C650D kernel: [18230.139094] sr 1:0:0:0: [sr0]  Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
  Oct  4 16:45:32 isk-Satellite-C650D kernel: [18230.139103] sr 1:0:0:0: [sr0]  Sense Key : Medium Error [current] 
  Oct  4 16:45:32 isk-Satellite-C650D kernel: [18230.139113] sr 1:0:0:0: [sr0]  Add. Sense: Unrecovered read error
  Oct  4 16:45:32 isk-Satellite-C650D kernel: [18230.139123] sr 1:0:0:0: [sr0] CDB: Read(10): 28 00 00 01 bb 1e 00 00 01 00
  Oct  4 16:45:32 isk-Satellite-C650D kernel: [18230.139141] end_request: I/O error, dev sr0, sector 453752
  Oct  4 16:45:32 isk-Satellite-C650D kernel: [18230.139151] Buffer I/O error on device sr0, logical block 113438
  Oct  4 16:45:32 isk-Satellite-C650D kernel: [18230.139221] Buffer I/O error on device loop0, logical block 226876
  Oct  4 16:45:33 isk-Satellite-C650D kernel: [18231.300460] sr 1:0:0:0: [sr0] Unhandled sense code
  Oct  4 16:45:33 isk-Satellite-C650D kernel: [18231.300470] sr 1:0:0:0: [sr0]  Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
  Oct  4 16:45:33 isk-Satellite-C650D kernel: [18231.300480] sr 1:0:0:0: [sr0]  Sense Key : Medium Error [current] 
  Oct  4 16:45:33 isk-Satellite-C650D kernel: [18231.300491] sr 1:0:0:0: [sr0]  Add. Sense: Unrecovered read error
  Oct  4 16:45:33 isk-Satellite-C650D kernel: [18231.300500] sr 1:0:0:0: [sr0] CDB: Read(10): 28 00 00 01 bb 1e 00 00 01 00
  Oct  4 16:45:33 isk-Satellite-C650D kernel: [18231.300519] end_request: I/O error, dev sr0, sector 453752
  Oct  4 16:45:33 isk-Satellite-C650D kernel: [18231.300530] Buffer I/O error on device sr0, logical block 113438
  Oct  4 16:45:33 isk-Satellite-C650D kernel: [18231.300583] Buffer I/O error on device loop0, logical block 226877
  Oct  4 16:45:34 isk-Satellite-C650D kernel: [18232.414143] sr 1:0:0:0: [sr0] Unhandled sense code
  Oct  4 16:45:34 isk-Satellite-C650D kernel: [18232.414148] sr 1:0:0:0: [sr0]  Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
  Oct  4 16:45:34 isk-Satellite-C650D kernel: [18232.414152] sr 1:0:0:0: [sr0]  Sense Key : Medium Error [current] 
  Oct  4 16:45:34 isk-Satellite-C650D kernel: [18232.414156] sr 1:0:0:0: [sr0]  Add. Sense: Unrecovered read error
  Oct  4 16:45:34 isk-Satellite-C650D kernel: [18232.414161] sr 1:0:0:0: [sr0] CDB: Read(10): 28 00 00 01 bb 1e 00 00 01 00
  Oct  4 16:45:34 isk-Satellite-C650D kernel: [18232.414168] end_request: I/O error, dev sr0, sector 453752
  Oct  4 16:45:34 isk-Satellite-C650D kernel: [18232.414173] Buffer I/O error on device sr0, logical block 113438
  Oct  4 16:45:34 isk-Satellite-C650D kernel: [18232.414234] Buffer I/O error on device loop0, logical block 226876
  Oct  4 16:45:36 isk-Satellite-C650D kernel: [18233.528566] sr 1:0:0:0: [sr0] Unhandled sense code
  Oct  4 16:45:36 isk-Satellite-C650D kernel: [18233.528576] sr 1:0:0:0: [sr0]  Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
  Oct  4 16:45:36 isk-Satellite-C650D kernel: [18233.528585] sr 1:0:0:0: [sr0]  Sense Key : Medium Error [current] 
  Oct  4 16:45:36 isk-Satellite-C650D kernel: [18233.528595] sr 1:0:0:0: [sr0]  Add. Sense: Unrecovered read error
  Oct  4 16:45:36 isk-Satellite-C650D kernel: [18233.528605] sr 1:0:0:0: [sr0] CDB: Read(10): 28 00 00 01 bb 1e 00 00 01 00
  Oct  4 16:45:36 isk-Satellite-C650D kernel: [18233.528623] end_request: I/O error, dev sr0, sector 453752
  Oct  4 16:45:36 isk-Satellite-C650D kernel: [18233.528633] Buffer I/O error on device sr0, logical block 113438
  Oct  4 16:45:36 isk-Satellite-C650D kernel: [18233.528703] Buffer I/O error on device loop0, logical block 226877
  Oct  4 16:45:37 isk-Satellite-C650D kernel: [18234.642876] sr 1:0:0:0: [sr0] Unhandled sense code
  Oct  4 16:45:37 isk-Satellite-C650D kernel: [18234.642885] sr 1:0:0:0: [sr0]  Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
  Oct  4 16:45:37 isk-Satellite-C650D kernel: [18234.642895] sr 1:0:0:0: [sr0]  Sense Key : Medium Error [current] 
  Oct  4 16:45:37 isk-Satellite-C650D kernel: [18234.642906] sr 1:0:0:0: [sr0]  Add. Sense: Unrecovered read error
  Oct  4 16:45:37 isk-Satellite-C650D kernel: [18234.642915] sr 1:0:0:0: [sr0] CDB: Read(10): 28 00 00 01 bb 1e 00 00 01 00
  Oct  4 16:45:37 isk-Satellite-C650D kernel: [18234.642934] end_request: I/O error, dev sr0, sector 453752
  Oct  4 16:45:37 isk-Satellite-C650D kernel: [18234.642945] Buffer I/O error on device sr0, logical block 113438
  Oct  4 16:45:37 isk-Satellite-C650D kernel: [18234.642993] Buffer I/O error on device loop0, logical block 226876
  Oct  4 16:45:38 isk-Satellite-C650D kernel: [18235.756305] sr 1:0:0:0: [sr0] Unhandled sense code
  Oct  4 16:45:38 isk-Satellite-C650D kernel: [18235.756316] sr 1:0:0:0: [sr0]  Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
  Oct  4 16:45:38 isk-Satellite-C650D kernel: [18235.756326] sr 1:0:0:0: [sr0]  Sense Key : Medium Error [current] 
  Oct  4 16:45:38 isk-Satellite-C650D kernel: [18235.756337] sr 1:0:0:0: [sr0]  Add. Sense: Unrecovered read error
  Oct  4 16:45:38 isk-Satellite-C650D kernel: [18235.756346] sr 1:0:0:0: [sr0] CDB: Read(10): 28 00 00 01 bb 1e 00 00 01 00
  Oct  4 16:45:38 isk-Satellite-C650D kernel: [18235.756365] end_request: I/O error, dev sr0, sector 453752
  Oct  4 16:45:38 isk-Satellite-C650D kernel: [18235.756376] Buffer I/O error on device sr0, logical block 113438
  Oct  4 16:45:38 isk-Satellite-C650D kernel: [18235.756461] Buffer I/O error on device loop0, logical block 226877
  Oct  4 16:45:39 isk-Satellite-C650D kernel: [18236.555506] ISOFS: Unable to identify CD-ROM format.

  ProblemType: Bug
  DistroRelease: Ubuntu 11.04
  Package: brasero 2.32.1-0ubuntu2
  ProcVersionSignature: Ubuntu 2.6.38-11.50-generic 2.6.38.8
  Uname: Linux 2.6.38-11-generic x86_64
  NonfreeKernelModules: fglrx
  Architecture: amd64
  Date: Tue Oct  4 16:47:06 2011
  ExecutablePath: /usr/bin/brasero
  InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427.1)
  ProcEnviron:
   LANGUAGE=de:en
   LANG=de_DE.UTF-8
   SHELL=/bin/bash
  SourcePackage: brasero
  UpgradeStatus: No upgrade log present (probably fresh install)

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References

[Bug 867570] [NEW] direct burning of data-cd results in unreadable disk
From: Torsten Casselt, 2011-10-04