DVD IO错误
我用growisofs刻了一张DVD
growisofs -dvd-compat -Z /dev/scd0=image -speed=4
刻录过程没有出现错误，但使用时出现了问题。
盘上的一部文件可以读取，md5sum校验无误，
但用MPlayer播放其中一些rmvb文件时，整个屏幕变花，但音频正常。
我把这些文件复制到硬盘后再播放就正常了。
读取另一些文件时，出现 Input/output error。
刻录机型号：BENQ DW1640 ，用USB外接。
请问如何解决此问题？谢谢。
下面是dmesg的输出：
sr 0:0:0:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE,SUGGEST_OK
sr 0:0:0:0: [sr0] Sense Key : Medium Error [current]
sr 0:0:0:0: [sr0] Add. Sense: Unrecovered read error
end_request: I/O error, dev sr0, sector 8687616
Buffer I/O error on device sr0, logical block 1085952
sr 0:0:0:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE,SUGGEST_OK
sr 0:0:0:0: [sr0] Sense Key : Medium Error [current]
sr 0:0:0:0: [sr0] Add. Sense: Unrecovered read error
end_request: I/O error, dev sr0, sector 8687616
Buffer I/O error on device sr0, logical block 1085952
sr 0:0:0:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE,SUGGEST_OK
sr 0:0:0:0: [sr0] Sense Key : Medium Error [current]
sr 0:0:0:0: [sr0] Add. Sense: Unrecovered read error
end_request: I/O error, dev sr0, sector 8687616
Buffer I/O error on device sr0, logical block 1085952
sr 0:0:0:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE,SUGGEST_OK
sr 0:0:0:0: [sr0] Sense Key : Medium Error [current]
sr 0:0:0:0: [sr0] Add. Sense: Unrecovered read error
end_request: I/O error, dev sr0, sector 8687616
Buffer I/O error on device sr0, logical block 1085952
ISO 9660 Extensions: Microsoft Joliet Level 3
ISO 9660 Extensions: RRIP_1991A
sr 0:0:0:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE,SUGGEST_OK
sr 0:0:0:0: [sr0] Sense Key : Medium Error [current]
sr 0:0:0:0: [sr0] Add. Sense: Unrecovered read error
end_request: I/O error, dev sr0, sector 8687128
Buffer I/O error on device sr0, logical block 2171782
sr 0:0:0:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE,SUGGEST_OK
sr 0:0:0:0: [sr0] Sense Key : Medium Error [current]
sr 0:0:0:0: [sr0] Add. Sense: Unrecovered read error
end_request: I/O error, dev sr0, sector 8687128
Buffer I/O error on device sr0, logical block 2171782
sr 0:0:0:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE,SUGGEST_OK
sr 0:0:0:0: [sr0] Sense Key : Medium Error [current]
sr 0:0:0:0: [sr0] Add. Sense: Unrecovered read error
end_request: I/O error, dev sr0, sector 8687128
Buffer I/O error on device sr0, logical block 2171782
sr 0:0:0:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE,SUGGEST_OK
sr 0:0:0:0: [sr0] Sense Key : Medium Error [current]
sr 0:0:0:0: [sr0] Add. Sense: Unrecovered read error
end_request: I/O error, dev sr0, sector 8687132
Buffer I/O error on device sr0, logical block 2171783
sr 0:0:0:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE,SUGGEST_OK
sr 0:0:0:0: [sr0] Sense Key : Medium Error [current]
sr 0:0:0:0: [sr0] Add. Sense: Unrecovered read error
end_request: I/O error, dev sr0, sector 8687132
Buffer I/O error on device sr0, logical block 2171783
sr 0:0:0:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE,SUGGEST_OK
sr 0:0:0:0: [sr0] Sense Key : Medium Error [current]
sr 0:0:0:0: [sr0] Add. Sense: Unrecovered read error
end_request: I/O error, dev sr0, sector 8586492
Buffer I/O error on device sr0, logical block 2146623
Buffer I/O error on device sr0, logical block 2146624
Buffer I/O error on device sr0, logical block 2146625
Buffer I/O error on device sr0, logical block 2146626
Buffer I/O error on device sr0, logical block 2146627
Buffer I/O error on device sr0, logical block 2146628
Buffer I/O error on device sr0, logical block 2146629
Buffer I/O error on device sr0, logical block 2146630
Buffer I/O error on device sr0, logical block 2146631
Buffer I/O error on device sr0, logical block 2146632
sr 0:0:0:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE,SUGGEST_OK
sr 0:0:0:0: [sr0] Sense Key : Medium Error [current]
sr 0:0:0:0: [sr0] Add. Sense: Unrecovered read error
end_request: I/O error, dev sr0, sector 8586556
printk: 6 messages suppressed.
Buffer I/O error on device sr0, logical block 2146639
gyx
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