我有一張在某些 DVD 燒錄機/播放器盒上製作的 DVD。我正在嘗試從中獲取文件，以便可以對素材進行視訊編輯。
我的問題是我無法讀取 DVD。它在 Windows 和 OS X 上被偵測為空白磁碟。這張 DVD 在獨立 DVD 播放器上播放效果非常好（我試過東芝的）。
由於我無法使用 Ubuntu 掛載磁碟，我猜測磁碟上存在無法讀取的檔案系統。是否有一些我可以安裝的軟體包來讓我嘗試讀取這個檔案系統並竊取資料？
編輯：執行vlc /dev/sr0dmesg 後顯示以下內容
[ 5001.607820] sr 1:0:0:0: [sr0]
[ 5001.607827] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[ 5001.607831] sr 1:0:0:0: [sr0]
[ 5001.607844] Sense Key : Illegal Request [current]
[ 5001.607846] Info fld=0x0
[ 5001.607847] sr 1:0:0:0: [sr0]
[ 5001.607849] Add. Sense: Illegal mode for this track
[ 5001.607850] sr 1:0:0:0: [sr0] CDB:
[ 5001.607851] Read(10): 28 00 00 00 00 00 00 00 02 00
[ 5001.607854] end_request: I/O error, dev sr0, sector 0
[ 5001.607857] Buffer I/O error on device sr0, logical block 0
[ 5001.607858] Buffer I/O error on device sr0, logical block 1
[ 5004.471249] sr 1:0:0:0: [sr0]
[ 5004.471255] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[ 5004.471259] sr 1:0:0:0: [sr0]
[ 5004.471261] Sense Key : Illegal Request [current]
[ 5004.471266] Info fld=0x0
[ 5004.471269] sr 1:0:0:0: [sr0]
[ 5004.471273] Add. Sense: Illegal mode for this track
[ 5004.471277] sr 1:0:0:0: [sr0] CDB:
[ 5004.471278] Read(10): 28 00 00 00 00 00 00 00 01 00
[ 5004.471289] end_request: I/O error, dev sr0, sector 0
[ 5004.471294] Buffer I/O error on device sr0, logical block 0
[ 5007.339915] sr 1:0:0:0: [sr0]
[ 5007.339920] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[ 5007.339924] sr 1:0:0:0: [sr0]
[ 5007.339926] Sense Key : Illegal Request [current]
[ 5007.339931] Info fld=0x1
[ 5007.339934] sr 1:0:0:0: [sr0]
[ 5007.339938] Add. Sense: Illegal mode for this track
[ 5007.339941] sr 1:0:0:0: [sr0] CDB:
[ 5007.339943] Read(10): 28 00 00 00 00 01 00 00 01 00
[ 5007.339954] end_request: I/O error, dev sr0, sector 4
[ 5007.339958] Buffer I/O error on device sr0, logical block 1
[ 5010.208395] sr 1:0:0:0: [sr0]
[ 5010.208401] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[ 5010.208405] sr 1:0:0:0: [sr0]
[ 5010.208407] Sense Key : Illegal Request [current]
[ 5010.208422] Info fld=0x0
[ 5010.208423] sr 1:0:0:0: [sr0]
[ 5010.208425] Add. Sense: Illegal mode for this track
[ 5010.208426] sr 1:0:0:0: [sr0] CDB:
[ 5010.208426] Read(10): 28 00 00 00 00 00 00 00 08 00
[ 5010.208430] end_request: I/O error, dev sr0, sector 0
[ 5010.208431] Buffer I/O error on device sr0, logical block 0
[ 5010.208432] Buffer I/O error on device sr0, logical block 1
[ 5010.208435] Buffer I/O error on device sr0, logical block 2
[ 5010.208436] Buffer I/O error on device sr0, logical block 3
[ 5010.208437] Buffer I/O error on device sr0, logical block 4
[ 5010.208438] Buffer I/O error on device sr0, logical block 5
[ 5010.208439] Buffer I/O error on device sr0, logical block 6
[ 5010.208440] Buffer I/O error on device sr0, logical block 7
[ 5013.076649] sr 1:0:0:0: [sr0]
[ 5013.076655] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[ 5013.076658] sr 1:0:0:0: [sr0]
[ 5013.076661] Sense Key : Illegal Request [current]
[ 5013.076665] Info fld=0x0
[ 5013.076668] sr 1:0:0:0: [sr0]
[ 5013.076672] Add. Sense: Illegal mode for this track
[ 5013.076676] sr 1:0:0:0: [sr0] CDB:
[ 5013.076678] Read(10): 28 00 00 00 00 00 00 00 01 00
[ 5013.076688] end_request: I/O error, dev sr0, sector 0
[ 5013.076693] Buffer I/O error on device sr0, logical block 0
[ 5015.939911] sr 1:0:0:0: [sr0]
[ 5015.939916] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[ 5015.939920] sr 1:0:0:0: [sr0]
[ 5015.939922] Sense Key : Illegal Request [current]
[ 5015.939927] Info fld=0x1
[ 5015.939930] sr 1:0:0:0: [sr0]
[ 5015.939934] Add. Sense: Illegal mode for this track
[ 5015.939937] sr 1:0:0:0: [sr0] CDB:
[ 5015.939939] Read(10): 28 00 00 00 00 01 00 00 01 00
[ 5015.939950] end_request: I/O error, dev sr0, sector 4
[ 5015.939954] Buffer I/O error on device sr0, logical block 1
[ 5018.813705] sr 1:0:0:0: [sr0]
[ 5018.813710] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[ 5018.813714] sr 1:0:0:0: [sr0]
[ 5018.813716] Sense Key : Illegal Request [current]
[ 5018.813721] Info fld=0x100
[ 5018.813724] sr 1:0:0:0: [sr0]
[ 5018.813728] Add. Sense: Illegal mode for this track
[ 5018.813731] sr 1:0:0:0: [sr0] CDB:
[ 5018.813733] Read(10): 28 00 00 00 01 00 00 00 02 00
[ 5018.813744] end_request: I/O error, dev sr0, sector 1024
[ 5018.813749] Buffer I/O error on device sr0, logical block 256
[ 5018.813753] Buffer I/O error on device sr0, logical block 257
[ 5021.681952] sr 1:0:0:0: [sr0]
[ 5021.681957] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[ 5021.681961] sr 1:0:0:0: [sr0]
[ 5021.681963] Sense Key : Illegal Request [current]
[ 5021.681968] Info fld=0x100
[ 5021.681971] sr 1:0:0:0: [sr0]
[ 5021.681976] Add. Sense: Illegal mode for this track
[ 5021.681979] sr 1:0:0:0: [sr0] CDB:
[ 5021.681981] Read(10): 28 00 00 00 01 00 00 00 01 00
[ 5021.681992] end_request: I/O error, dev sr0, sector 1024
[ 5021.681996] Buffer I/O error on device sr0, logical block 256
[ 5024.550795] sr 1:0:0:0: [sr0]
[ 5024.550801] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[ 5024.550805] sr 1:0:0:0: [sr0]
[ 5024.550808] Sense Key : Illegal Request [current]
[ 5024.550813] Info fld=0x101
[ 5024.550816] sr 1:0:0:0: [sr0]
[ 5024.550820] Add. Sense: Illegal mode for this track
[ 5024.550823] sr 1:0:0:0: [sr0] CDB:
[ 5024.550825] Read(10): 28 00 00 00 01 01 00 00 01 00
[ 5024.550836] end_request: I/O error, dev sr0, sector 1028
[ 5024.550842] Buffer I/O error on device sr0, logical block 257
[ 5027.419831] sr 1:0:0:0: [sr0]
[ 5027.419837] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[ 5027.419840] sr 1:0:0:0: [sr0]
[ 5027.419843] Sense Key : Illegal Request [current]
[ 5027.419848] Info fld=0x100
[ 5027.419851] sr 1:0:0:0: [sr0]
[ 5027.419854] Add. Sense: Illegal mode for this track
[ 5027.419858] sr 1:0:0:0: [sr0] CDB:
[ 5027.419860] Read(10): 28 00 00 00 01 00 00 00 01 00
[ 5027.419871] end_request: I/O error, dev sr0, sector 1024
[ 5027.419876] Buffer I/O error on device sr0, logical block 256
[ 5030.288536] sr 1:0:0:0: [sr0]
[ 5030.288542] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[ 5030.288545] sr 1:0:0:0: [sr0]
[ 5030.288548] Sense Key : Illegal Request [current]
[ 5030.288552] Info fld=0x101
[ 5030.288555] sr 1:0:0:0: [sr0]
[ 5030.288559] Add. Sense: Illegal mode for this track
[ 5030.288563] sr 1:0:0:0: [sr0] CDB:
[ 5030.288565] Read(10): 28 00 00 00 01 01 00 00 01 00
[ 5030.288576] end_request: I/O error, dev sr0, sector 1028
[ 5030.288580] Buffer I/O error on device sr0, logical block 257
[ 5033.147861] sr 1:0:0:0: [sr0]
[ 5033.147866] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[ 5033.147870] sr 1:0:0:0: [sr0]
[ 5033.147872] Sense Key : Illegal Request [current]
[ 5033.147877] Info fld=0x0
[ 5033.147890] sr 1:0:0:0: [sr0]
[ 5033.147891] Add. Sense: Illegal mode for this track
[ 5033.147892] sr 1:0:0:0: [sr0] CDB:
[ 5033.147893] Read(10): 28 00 00 00 00 00 00 00 02 00
[ 5033.147896] end_request: I/O error, dev sr0, sector 0
[ 5033.147898] Buffer I/O error on device sr0, logical block 0
[ 5033.147899] Buffer I/O error on device sr0, logical block 1
[ 5036.016614] sr 1:0:0:0: [sr0]
[ 5036.016619] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[ 5036.016623] sr 1:0:0:0: [sr0]
[ 5036.016625] Sense Key : Illegal Request [current]
[ 5036.016630] Info fld=0x0
[ 5036.016633] sr 1:0:0:0: [sr0]
[ 5036.016637] Add. Sense: Illegal mode for this track
[ 5036.016640] sr 1:0:0:0: [sr0] CDB:
[ 5036.016642] Read(10): 28 00 00 00 00 00 00 00 01 00
[ 5036.016653] end_request: I/O error, dev sr0, sector 0
[ 5036.016657] Buffer I/O error on device sr0, logical block 0
[ 5038.885062] sr 1:0:0:0: [sr0]
[ 5038.885067] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[ 5038.885071] sr 1:0:0:0: [sr0]
[ 5038.885073] Sense Key : Illegal Request [current]
[ 5038.885078] Info fld=0x1
[ 5038.885081] sr 1:0:0:0: [sr0]
[ 5038.885085] Add. Sense: Illegal mode for this track
[ 5038.885088] sr 1:0:0:0: [sr0] CDB:
[ 5038.885090] Read(10): 28 00 00 00 00 01 00 00 01 00
[ 5038.885101] end_request: I/O error, dev sr0, sector 4
[ 5038.885105] Buffer I/O error on device sr0, logical block 1
基於此，我的猜測是將dd其放入 .iso 或 .img 檔案中。但不確定這是否有助於解決 I/O 錯誤。