[84977.549149] sr 1:0:0:0: [sr0] Unhandled sense code
[84977.549157] sr 1:0:0:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[84977.549165] sr 1:0:0:0: [sr0] Sense Key : Medium Error [current] 
[84977.549176] sr 1:0:0:0: [sr0] Add. Sense: No seek complete
[84977.549186] sr 1:0:0:0: [sr0] CDB: Read(10): 28 00 00 00 00 00 00 00 02 00
[84977.549206] end_request: I/O error, dev sr0, sector 0
[84977.549216] Buffer I/O error on device sr0, logical block 0
[84977.549224] Buffer I/O error on device sr0, logical block 1
[84988.829651] sr 1:0:0:0: [sr0] Unhandled sense code
[84988.829659] sr 1:0:0:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[84988.829667] sr 1:0:0:0: [sr0] Sense Key : Medium Error [current] 
[84988.829677] sr 1:0:0:0: [sr0] Add. Sense: No seek complete
[84988.829687] sr 1:0:0:0: [sr0] CDB: Read(10): 28 00 00 00 00 00 00 00 02 00
[84988.829707] end_request: I/O error, dev sr0, sector 0
[84988.829717] Buffer I/O error on device sr0, logical block 0
[84988.829726] Buffer I/O error on device sr0, logical block 1
[85000.113375] sr 1:0:0:0: [sr0] Unhandled sense code
[85000.113383] sr 1:0:0:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[85000.113391] sr 1:0:0:0: [sr0] Sense Key : Medium Error [current] 
[85000.113401] sr 1:0:0:0: [sr0] Add. Sense: No seek complete
[85000.113411] sr 1:0:0:0: [sr0] CDB: Read(10): 28 00 00 00 00 00 00 00 02 00
[85000.113431] end_request: I/O error, dev sr0, sector 0
[85000.113439] Buffer I/O error on device sr0, logical block 0
[85000.113447] Buffer I/O error on device sr0, logical block 1