我在网上买了一张纪录片 DVD，但当我将 DVD 插入 Windows 机器时，什么也没发生。因此，我尝试使用 Ubuntu，结果发生了同样的事情。
插入 DVD 后，我检查 dmesg 时得到了这个
[May11 20:32] ata6.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen
[ +0.000034] ata6.00: cmd a0/00:00:00:02:00/00:00:00:00:00/a0 tag 24 pio 16388 in
Xpwrite, Read disk info 51 00 00 00 00 00 00 00 02 00res 40/00:03:00:00:00/00:00:00:00:00/a0 Emask 0x4 (timeout)
[ +0.000008] ata6.00: status: { DRDY }
[ +0.000010] ata6: hard resetting link
[ +0.315520] ata6: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
[ +0.009245] ata6.00: configured for UDMA/133
[ +0.002180] ata6: EH complete
当我尝试使用 mount 命令挂载时sudo mount /dev/sr0 /mnt/cdrom，我得到了
mount: /mnt/cdrom: wrong fs type, bad option, bad superblock on /dev/sr0, missing codepage or helper program, or other error.
我在终端上打开了 vlc，并尝试将光盘（媒体->打开光盘）作为 DVD 打开并播放。但我在 vlc 日志中收到此错误：
libdvdnav: Using dvdnav version 6.0.0
libdvdread: Can't seek to block 256
libdvdread:DVDOpenFileUDF:UDFFindFile /VIDEO_TS/VIDEO_TS.IFO failed
libdvdread: Can't seek to block 256
libdvdread:DVDOpenFileUDF:UDFFindFile /VIDEO_TS/VIDEO_TS.BUP failed
libdvdread: Can't open file VIDEO_TS.IFO.
libdvdnav: vm: failed to read VIDEO_TS.IFO
libdvdread: Can't seek to block 256
libdvdread:DVDOpenFileUDF:UDFFindFile /VIDEO_TS/VIDEO_TS.IFO failed
libdvdread: Can't seek to block 256
libdvdread:DVDOpenFileUDF:UDFFindFile /VIDEO_TS/VIDEO_TS.BUP failed
libdvdread: Can't open file VIDEO_TS.BUP.
libdvdread: Can't seek to block 256
libdvdread: Can't seek to block 16
libdvdread: DVDISOVolumeInfo, failed to read ISO9660 Primary Volume Descriptor!
我再次使用 -t iso9660 选项运行 mount 命令，但在 dmesg 上收到此消息：
[ +19.935654] sr 5:0:0:0: [sr0] tag#24 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[ +0.000009] sr 5:0:0:0: [sr0] tag#24 Sense Key : Medium Error [current]
[ +0.000007] sr 5:0:0:0: [sr0] tag#24 Add. Sense: Unable to recover table-of-contents
[ +0.000008] sr 5:0:0:0: [sr0] tag#24 CDB: Read(10) 28 00 00 00 00 10 00 00 01 00
[ +0.000004] print_req_error: I/O error, dev sr0, sector 64
[ +0.000089] isofs_fill_super: bread failed, dev=sr0, iso_blknum=16, block=16
那么，这是否意味着 DVD 本身有缺陷，还是我应该尝试其他方法？