DVDs in my external DVD/CD drive (mounted on the front of my Mac) won't mount on my Mac while they did about 2 weeks ago.  HELP

DVDs in my external DVD/CD drive (mounted on the front of my Mac) won't mount on my Mac while they did about 2 weeks ago.  HELP

Hi Judy,
I find Optical Drives short lived, especially on Macs, but have you tried a CD Cleaner Disc?
One other fix in 10.4.x...
First, Safe Boot , (holding Shift key down at bootup), use Disk Utility from there to Repair Permissions, test if things work OK in Safe Mode.
Then move these files to the Desktop...
/Users/YourUserName/Library/Preferences/com.apple.finder.plist
/Users/YourUserName/Library/Preferences/com.apple.systempreferences.plist
/Users/YourUserName/Library/Preferences/com.apple.desktop.plist
/Users/YourUserName/Library/Preferences/com.apple.recentitems.plist
Reboot & test.
PS. Safe boot may stay on the gray radian for a long time, let it go, it's trying to repair the Hard Drive.

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    sr 1:0:0:0: [sr0] Sense Key : 0x5 [current]
    sr 1:0:0:0: [sr0] ASC=0x21 ASCQ=0x0
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    end_request: I/O error, dev sr0, sector 0
    Buffer I/O error on device sr0, logical block 0
    sr 1:0:0:0: [sr0] Result: hostbyte=0x00 driverbyte=0x08
    sr 1:0:0:0: [sr0] Sense Key : 0x5 [current]
    sr 1:0:0:0: [sr0] ASC=0x21 ASCQ=0x0
    sr 1:0:0:0: [sr0] CDB: cdb[0]=0x28: 28 00 00 00 00 00 00 00 01 00
    end_request: I/O error, dev sr0, sector 0
    Buffer I/O error on device sr0, logical block 0
    sr 1:0:0:0: [sr0] Result: hostbyte=0x00 driverbyte=0x08
    sr 1:0:0:0: [sr0] Sense Key : 0x5 [current]
    sr 1:0:0:0: [sr0] ASC=0x21 ASCQ=0x0
    sr 1:0:0:0: [sr0] CDB: cdb[0]=0x28: 28 00 00 00 00 00 00 00 01 00
    end_request: I/O error, dev sr0, sector 0
    Buffer I/O error on device sr0, logical block 0
    sr 1:0:0:0: [sr0] Result: hostbyte=0x00 driverbyte=0x08
    sr 1:0:0:0: [sr0] Sense Key : 0x5 [current]
    sr 1:0:0:0: [sr0] ASC=0x21 ASCQ=0x0
    sr 1:0:0:0: [sr0] CDB: cdb[0]=0x28: 28 00 00 00 00 00 00 00 01 00
    end_request: I/O error, dev sr0, sector 0
    Buffer I/O error on device sr0, logical block 0
    sr 1:0:0:0: [sr0] Result: hostbyte=0x00 driverbyte=0x08
    sr 1:0:0:0: [sr0] Sense Key : 0x5 [current]
    sr 1:0:0:0: [sr0] ASC=0x21 ASCQ=0x0
    sr 1:0:0:0: [sr0] CDB: cdb[0]=0x28: 28 00 00 00 00 00 00 00 01 00
    end_request: I/O error, dev sr0, sector 0
    Buffer I/O error on device sr0, logical block 0
    sr 1:0:0:0: [sr0] Result: hostbyte=0x00 driverbyte=0x08
    sr 1:0:0:0: [sr0] Sense Key : 0x5 [current]
    sr 1:0:0:0: [sr0] ASC=0x21 ASCQ=0x0
    sr 1:0:0:0: [sr0] CDB: cdb[0]=0x28: 28 00 00 00 00 00 00 00 01 00
    end_request: I/O error, dev sr0, sector 0
    Buffer I/O error on device sr0, logical block 0
    sr 1:0:0:0: [sr0] Result: hostbyte=0x00 driverbyte=0x08
    sr 1:0:0:0: [sr0] Sense Key : 0x5 [current]
    sr 1:0:0:0: [sr0] ASC=0x21 ASCQ=0x0
    sr 1:0:0:0: [sr0] CDB: cdb[0]=0x28: 28 00 00 00 00 00 00 00 01 00
    end_request: I/O error, dev sr0, sector 0
    Buffer I/O error on device sr0, logical block 0
    sr 1:0:0:0: [sr0] Result: hostbyte=0x00 driverbyte=0x08
    sr 1:0:0:0: [sr0] Sense Key : 0x5 [current]
    sr 1:0:0:0: [sr0] ASC=0x21 ASCQ=0x0
    sr 1:0:0:0: [sr0] CDB: cdb[0]=0x28: 28 00 00 00 00 00 00 00 01 00
    end_request: I/O error, dev sr0, sector 0
    Buffer I/O error on device sr0, logical block 0
    sr 1:0:0:0: [sr0] Result: hostbyte=0x00 driverbyte=0x08
    sr 1:0:0:0: [sr0] Sense Key : 0x5 [current]
    sr 1:0:0:0: [sr0] ASC=0x21 ASCQ=0x0
    sr 1:0:0:0: [sr0] CDB: cdb[0]=0x28: 28 00 00 00 00 00 00 00 01 00
    end_request: I/O error, dev sr0, sector 0
    Buffer I/O error on device sr0, logical block 0
    sr 1:0:0:0: [sr0] Result: hostbyte=0x00 driverbyte=0x08
    sr 1:0:0:0: [sr0] Sense Key : 0x5 [current]
    sr 1:0:0:0: [sr0] ASC=0x21 ASCQ=0x0
    sr 1:0:0:0: [sr0] CDB: cdb[0]=0x28: 28 00 00 00 00 00 00 00 01 00
    end_request: I/O error, dev sr0, sector 0
    sr 1:0:0:0: [sr0] Result: hostbyte=0x00 driverbyte=0x08
    sr 1:0:0:0: [sr0] Sense Key : 0x5 [current]
    sr 1:0:0:0: [sr0] ASC=0x21 ASCQ=0x0
    sr 1:0:0:0: [sr0] CDB: cdb[0]=0x28: 28 00 00 00 00 00 00 00 01 00
    end_request: I/O error, dev sr0, sector 0
    sr 1:0:0:0: [sr0] Result: hostbyte=0x00 driverbyte=0x08
    sr 1:0:0:0: [sr0] Sense Key : 0x5 [current]
    sr 1:0:0:0: [sr0] ASC=0x21 ASCQ=0x0
    sr 1:0:0:0: [sr0] CDB: cdb[0]=0x28: 28 00 00 00 00 00 00 00 01 00
    end_request: I/O error, dev sr0, sector 0
    sr 1:0:0:0: [sr0] Result: hostbyte=0x00 driverbyte=0x08
    sr 1:0:0:0: [sr0] Sense Key : 0x5 [current]
    sr 1:0:0:0: [sr0] ASC=0x21 ASCQ=0x0
    sr 1:0:0:0: [sr0] CDB: cdb[0]=0x28: 28 00 00 00 00 00 00 00 01 00
    end_request: I/O error, dev sr0, sector 0
    sr 1:0:0:0: [sr0] Result: hostbyte=0x00 driverbyte=0x08
    sr 1:0:0:0: [sr0] Sense Key : 0x5 [current]
    sr 1:0:0:0: [sr0] ASC=0x21 ASCQ=0x0
    sr 1:0:0:0: [sr0] CDB: cdb[0]=0x28: 28 00 00 00 00 00 00 00 01 00
    end_request: I/O error, dev sr0, sector 0
    sr 1:0:0:0: [sr0] Result: hostbyte=0x00 driverbyte=0x08
    sr 1:0:0:0: [sr0] Sense Key : 0x5 [current]
    sr 1:0:0:0: [sr0] ASC=0x21 ASCQ=0x0
    sr 1:0:0:0: [sr0] CDB: cdb[0]=0x28: 28 00 00 00 00 00 00 00 01 00
    end_request: I/O error, dev sr0, sector 0
    sr 1:0:0:0: [sr0] Result: hostbyte=0x00 driverbyte=0x08
    sr 1:0:0:0: [sr0] Sense Key : 0x5 [current]
    sr 1:0:0:0: [sr0] ASC=0x21 ASCQ=0x0
    sr 1:0:0:0: [sr0] CDB: cdb[0]=0x28: 28 00 00 00 00 00 00 00 01 00
    end_request: I/O error, dev sr0, sector 0
    sr 1:0:0:0: [sr0] Result: hostbyte=0x00 driverbyte=0x08
    sr 1:0:0:0: [sr0] Sense Key : 0x5 [current]
    sr 1:0:0:0: [sr0] ASC=0x21 ASCQ=0x0
    sr 1:0:0:0: [sr0] CDB: cdb[0]=0x28: 28 00 00 00 00 00 00 00 01 00
    end_request: I/O error, dev sr0, sector 0
    sr 1:0:0:0: [sr0] Result: hostbyte=0x00 driverbyte=0x08
    sr 1:0:0:0: [sr0] Sense Key : 0x5 [current]
    sr 1:0:0:0: [sr0] ASC=0x21 ASCQ=0x0
    sr 1:0:0:0: [sr0] CDB: cdb[0]=0x28: 28 00 00 00 00 00 00 00 01 00
    end_request: I/O error, dev sr0, sector 0
    sr 1:0:0:0: [sr0] Result: hostbyte=0x00 driverbyte=0x08
    sr 1:0:0:0: [sr0] Sense Key : 0x5 [current]
    sr 1:0:0:0: [sr0] ASC=0x21 ASCQ=0x0
    sr 1:0:0:0: [sr0] CDB: cdb[0]=0x28: 28 00 00 00 00 00 00 00 01 00
    end_request: I/O error, dev sr0, sector 0
    sr 1:0:0:0: [sr0] Result: hostbyte=0x00 driverbyte=0x08
    sr 1:0:0:0: [sr0] Sense Key : 0x5 [current]
    sr 1:0:0:0: [sr0] ASC=0x21 ASCQ=0x0
    sr 1:0:0:0: [sr0] CDB: cdb[0]=0x28: 28 00 00 00 00 00 00 00 01 00
    end_request: I/O error, dev sr0, sector 0
    sr 1:0:0:0: [sr0] Result: hostbyte=0x00 driverbyte=0x08
    sr 1:0:0:0: [sr0] Sense Key : 0x5 [current]
    sr 1:0:0:0: [sr0] ASC=0x21 ASCQ=0x0
    sr 1:0:0:0: [sr0] CDB: cdb[0]=0x28: 28 00 00 00 00 00 00 00 01 00
    end_request: I/O error, dev sr0, sector 0
    sr 1:0:0:0: [sr0] Result: hostbyte=0x00 driverbyte=0x08
    sr 1:0:0:0: [sr0] Sense Key : 0x5 [current]
    sr 1:0:0:0: [sr0] ASC=0x21 ASCQ=0x0
    sr 1:0:0:0: [sr0] CDB: cdb[0]=0x28: 28 00 00 00 00 00 00 00 01 00
    end_request: I/O error, dev sr0, sector 0
    sr 1:0:0:0: [sr0] Result: hostbyte=0x00 driverbyte=0x08
    sr 1:0:0:0: [sr0] Sense Key : 0x5 [current]
    sr 1:0:0:0: [sr0] ASC=0x21 ASCQ=0x0
    sr 1:0:0:0: [sr0] CDB: cdb[0]=0x28: 28 00 00 00 00 00 00 00 01 00
    end_request: I/O error, dev sr0, sector 0
    sr 1:0:0:0: [sr0] Result: hostbyte=0x00 driverbyte=0x08
    sr 1:0:0:0: [sr0] Sense Key : 0x5 [current]
    sr 1:0:0:0: [sr0] ASC=0x21 ASCQ=0x0
    sr 1:0:0:0: [sr0] CDB: cdb[0]=0x28: 28 00 00 00 00 00 00 00 01 00
    end_request: I/O error, dev sr0, sector 0
    sr 1:0:0:0: [sr0] Result: hostbyte=0x00 driverbyte=0x08
    sr 1:0:0:0: [sr0] Sense Key : 0x5 [current]
    sr 1:0:0:0: [sr0] ASC=0x21 ASCQ=0x0
    sr 1:0:0:0: [sr0] CDB: cdb[0]=0x28: 28 00 00 00 00 00 00 00 01 00
    end_request: I/O error, dev sr0, sector 0
    sr 1:0:0:0: [sr0] Result: hostbyte=0x00 driverbyte=0x08
    sr 1:0:0:0: [sr0] Sense Key : 0x5 [current]
    sr 1:0:0:0: [sr0] ASC=0x21 ASCQ=0x0
    sr 1:0:0:0: [sr0] CDB: cdb[0]=0x28: 28 00 00 00 00 00 00 00 01 00
    end_request: I/O error, dev sr0, sector 0
    sr 1:0:0:0: [sr0] Result: hostbyte=0x00 driverbyte=0x08
    sr 1:0:0:0: [sr0] Sense Key : 0x5 [current]
    sr 1:0:0:0: [sr0] ASC=0x21 ASCQ=0x0
    sr 1:0:0:0: [sr0] CDB: cdb[0]=0x28: 28 00 00 00 00 00 00 00 01 00
    end_request: I/O error, dev sr0, sector 0
    sr 1:0:0:0: [sr0] Result: hostbyte=0x00 driverbyte=0x08
    sr 1:0:0:0: [sr0] Sense Key : 0x5 [current]
    sr 1:0:0:0: [sr0] ASC=0x21 ASCQ=0x0
    sr 1:0:0:0: [sr0] CDB: cdb[0]=0x28: 28 00 00 00 00 00 00 00 01 00
    end_request: I/O error, dev sr0, sector 0
    sr 1:0:0:0: [sr0] Result: hostbyte=0x00 driverbyte=0x08
    sr 1:0:0:0: [sr0] Sense Key : 0x5 [current]
    sr 1:0:0:0: [sr0] ASC=0x21 ASCQ=0x0
    sr 1:0:0:0: [sr0] CDB: cdb[0]=0x28: 28 00 00 00 00 00 00 00 01 00
    end_request: I/O error, dev sr0, sector 0
    sr 1:0:0:0: [sr0] Result: hostbyte=0x00 driverbyte=0x08
    sr 1:0:0:0: [sr0] Sense Key : 0x5 [current]
    sr 1:0:0:0: [sr0] ASC=0x21 ASCQ=0x0
    sr 1:0:0:0: [sr0] CDB: cdb[0]=0x28: 28 00 00 00 00 00 00 00 01 00
    end_request: I/O error, dev sr0, sector 0
    sr 1:0:0:0: [sr0] Result: hostbyte=0x00 driverbyte=0x08
    sr 1:0:0:0: [sr0] Sense Key : 0x5 [current]
    sr 1:0:0:0: [sr0] ASC=0x21 ASCQ=0x0
    sr 1:0:0:0: [sr0] CDB: cdb[0]=0x28: 28 00 00 00 00 00 00 00 01 00
    end_request: I/O error, dev sr0, sector 0
    sr 1:0:0:0: [sr0] Result: hostbyte=0x00 driverbyte=0x08
    sr 1:0:0:0: [sr0] Sense Key : 0x5 [current]
    sr 1:0:0:0: [sr0] ASC=0x21 ASCQ=0x0
    sr 1:0:0:0: [sr0] CDB: cdb[0]=0x28: 28 00 00 00 00 00 00 00 01 00
    end_request: I/O error, dev sr0, sector 0
    sr 1:0:0:0: [sr0] Result: hostbyte=0x00 driverbyte=0x08
    sr 1:0:0:0: [sr0] Sense Key : 0x5 [current]
    sr 1:0:0:0: [sr0] ASC=0x21 ASCQ=0x0
    sr 1:0:0:0: [sr0] CDB: cdb[0]=0x28: 28 00 00 00 00 00 00 00 01 00
    end_request: I/O error, dev sr0, sector 0
    sr 1:0:0:0: [sr0] Result: hostbyte=0x00 driverbyte=0x08
    sr 1:0:0:0: [sr0] Sense Key : 0x5 [current]
    sr 1:0:0:0: [sr0] ASC=0x21 ASCQ=0x0
    sr 1:0:0:0: [sr0] CDB: cdb[0]=0x28: 28 00 00 00 00 00 00 00 01 00
    end_request: I/O error, dev sr0, sector 0
    sr 1:0:0:0: [sr0] Result: hostbyte=0x00 driverbyte=0x08
    sr 1:0:0:0: [sr0] Sense Key : 0x5 [current]
    sr 1:0:0:0: [sr0] ASC=0x21 ASCQ=0x0
    sr 1:0:0:0: [sr0] CDB: cdb[0]=0x28: 28 00 00 00 00 00 00 00 01 00
    end_request: I/O error, dev sr0, sector 0
    sr 1:0:0:0: [sr0] Result: hostbyte=0x00 driverbyte=0x08
    sr 1:0:0:0: [sr0] Sense Key : 0x5 [current]
    sr 1:0:0:0: [sr0] ASC=0x21 ASCQ=0x0
    sr 1:0:0:0: [sr0] CDB: cdb[0]=0x28: 28 00 00 00 00 00 00 00 01 00
    end_request: I/O error, dev sr0, sector 0
    sr 1:0:0:0: [sr0] Result: hostbyte=0x00 driverbyte=0x08
    sr 1:0:0:0: [sr0] Sense Key : 0x5 [current]
    sr 1:0:0:0: [sr0] ASC=0x21 ASCQ=0x0
    sr 1:0:0:0: [sr0] CDB: cdb[0]=0x28: 28 00 00 00 00 00 00 00 01 00
    end_request: I/O error, dev sr0, sector 0
    sr 1:0:0:0: [sr0] Result: hostbyte=0x00 driverbyte=0x08
    sr 1:0:0:0: [sr0] Sense Key : 0x5 [current]
    sr 1:0:0:0: [sr0] ASC=0x21 ASCQ=0x0
    sr 1:0:0:0: [sr0] CDB: cdb[0]=0x28: 28 00 00 00 00 00 00 00 01 00
    end_request: I/O error, dev sr0, sector 0
    sr 1:0:0:0: [sr0] Result: hostbyte=0x00 driverbyte=0x08
    sr 1:0:0:0: [sr0] Sense Key : 0x5 [current]
    sr 1:0:0:0: [sr0] ASC=0x21 ASCQ=0x0
    sr 1:0:0:0: [sr0] CDB: cdb[0]=0x28: 28 00 00 00 00 00 00 00 01 00
    end_request: I/O error, dev sr0, sector 0
    sr 1:0:0:0: [sr0] Result: hostbyte=0x00 driverbyte=0x08
    sr 1:0:0:0: [sr0] Sense Key : 0x5 [current]
    sr 1:0:0:0: [sr0] ASC=0x21 ASCQ=0x0
    sr 1:0:0:0: [sr0] CDB: cdb[0]=0x28: 28 00 00 00 00 00 00 00 01 00
    end_request: I/O error, dev sr0, sector 0
    sr 1:0:0:0: [sr0] Result: hostbyte=0x00 driverbyte=0x08
    sr 1:0:0:0: [sr0] Sense Key : 0x5 [current]
    sr 1:0:0:0: [sr0] ASC=0x21 ASCQ=0x0
    sr 1:0:0:0: [sr0] CDB: cdb[0]=0x28: 28 00 00 00 00 00 00 00 01 00
    end_request: I/O error, dev sr0, sector 0
    sr 1:0:0:0: [sr0] Result: hostbyte=0x00 driverbyte=0x08
    sr 1:0:0:0: [sr0] Sense Key : 0x5 [current]
    sr 1:0:0:0: [sr0] ASC=0x21 ASCQ=0x0
    sr 1:0:0:0: [sr0] CDB: cdb[0]=0x28: 28 00 00 00 00 00 00 00 01 00
    end_request: I/O error, dev sr0, sector 0
    sr 1:0:0:0: [sr0] Result: hostbyte=0x00 driverbyte=0x08
    sr 1:0:0:0: [sr0] Sense Key : 0x5 [current]
    sr 1:0:0:0: [sr0] ASC=0x21 ASCQ=0x0
    sr 1:0:0:0: [sr0] CDB: cdb[0]=0x28: 28 00 00 00 00 00 00 00 01 00
    end_request: I/O error, dev sr0, sector 0
    sr 1:0:0:0: [sr0] Result: hostbyte=0x00 driverbyte=0x08
    sr 1:0:0:0: [sr0] Sense Key : 0x5 [current]
    sr 1:0:0:0: [sr0] ASC=0x21 ASCQ=0x0
    sr 1:0:0:0: [sr0] CDB: cdb[0]=0x28: 28 00 00 00 00 00 00 00 01 00
    end_request: I/O error, dev sr0, sector 0
    sr 1:0:0:0: [sr0] Result: hostbyte=0x00 driverbyte=0x08
    sr 1:0:0:0: [sr0] Sense Key : 0x5 [current]
    sr 1:0:0:0: [sr0] ASC=0x21 ASCQ=0x0
    sr 1:0:0:0: [sr0] CDB: cdb[0]=0x28: 28 00 00 00 00 00 00 00 01 00
    end_request: I/O error, dev sr0, sector 0
    sr 1:0:0:0: [sr0] Result: hostbyte=0x00 driverbyte=0x08
    sr 1:0:0:0: [sr0] Sense Key : 0x5 [current]
    sr 1:0:0:0: [sr0] ASC=0x21 ASCQ=0x0
    sr 1:0:0:0: [sr0] CDB: cdb[0]=0x28: 28 00 00 00 00 00 00 00 01 00
    end_request: I/O error, dev sr0, sector 0
    sr 1:0:0:0: [sr0] Result: hostbyte=0x00 driverbyte=0x08
    sr 1:0:0:0: [sr0] Sense Key : 0x5 [current]
    sr 1:0:0:0: [sr0] ASC=0x21 ASCQ=0x0
    sr 1:0:0:0: [sr0] CDB: cdb[0]=0x28: 28 00 00 00 00 00 00 00 01 00
    end_request: I/O error, dev sr0, sector 0
    sr 1:0:0:0: [sr0] Result: hostbyte=0x00 driverbyte=0x08
    sr 1:0:0:0: [sr0] Sense Key : 0x5 [current]
    sr 1:0:0:0: [sr0] ASC=0x21 ASCQ=0x0
    sr 1:0:0:0: [sr0] CDB: cdb[0]=0x28: 28 00 00 00 00 00 00 00 01 00
    end_request: I/O error, dev sr0, sector 0
    sr 1:0:0:0: [sr0] Result: hostbyte=0x00 driverbyte=0x08
    sr 1:0:0:0: [sr0] Sense Key : 0x5 [current]
    sr 1:0:0:0: [sr0] ASC=0x21 ASCQ=0x0
    sr 1:0:0:0: [sr0] CDB: cdb[0]=0x28: 28 00 00 00 00 00 00 00 01 00
    end_request: I/O error, dev sr0, sector 0
    sr 1:0:0:0: [sr0] Result: hostbyte=0x00 driverbyte=0x08
    sr 1:0:0:0: [sr0] Sense Key : 0x5 [current]
    sr 1:0:0:0: [sr0] ASC=0x21 ASCQ=0x0
    sr 1:0:0:0: [sr0] CDB: cdb[0]=0x28: 28 00 00 00 00 00 00 00 01 00
    end_request: I/O error, dev sr0, sector 0
    sr 1:0:0:0: [sr0] Result: hostbyte=0x00 driverbyte=0x08
    sr 1:0:0:0: [sr0] Sense Key : 0x5 [current]
    sr 1:0:0:0: [sr0] ASC=0x21 ASCQ=0x0
    sr 1:0:0:0: [sr0] CDB: cdb[0]=0x28: 28 00 00 00 00 00 00 00 01 00
    end_request: I/O error, dev sr0, sector 0
    sr 1:0:0:0: [sr0] Result: hostbyte=0x00 driverbyte=0x08
    sr 1:0:0:0: [sr0] Sense Key : 0x5 [current]
    sr 1:0:0:0: [sr0] ASC=0x21 ASCQ=0x0
    sr 1:0:0:0: [sr0] CDB: cdb[0]=0x28: 28 00 00 00 00 00 00 00 01 00
    end_request: I/O error, dev sr0, sector 0
    sr 1:0:0:0: [sr0] Result: hostbyte=0x00 driverbyte=0x08
    sr 1:0:0:0: [sr0] Sense Key : 0x5 [current]
    sr 1:0:0:0: [sr0] ASC=0x21 ASCQ=0x0
    sr 1:0:0:0: [sr0] CDB: cdb[0]=0x28: 28 00 00 00 00 00 00 00 01 00
    end_request: I/O error, dev sr0, sector 0
    sr 1:0:0:0: [sr0] Result: hostbyte=0x00 driverbyte=0x08
    sr 1:0:0:0: [sr0] Sense Key : 0x5 [current]
    sr 1:0:0:0: [sr0] ASC=0x21 ASCQ=0x0
    sr 1:0:0:0: [sr0] CDB: cdb[0]=0x28: 28 00 00 00 00 00 00 00 01 00
    end_request: I/O error, dev sr0, sector 0
    sr 1:0:0:0: [sr0] Result: hostbyte=0x00 driverbyte=0x08
    sr 1:0:0:0: [sr0] Sense Key : 0x5 [current]
    sr 1:0:0:0: [sr0] ASC=0x21 ASCQ=0x0
    sr 1:0:0:0: [sr0] CDB: cdb[0]=0x28: 28 00 00 00 00 00 00 00 01 00
    end_request: I/O error, dev sr0, sector 0
    sr 1:0:0:0: [sr0] Result: hostbyte=0x00 driverbyte=0x08
    sr 1:0:0:0: [sr0] Sense Key : 0x5 [current]
    sr 1:0:0:0: [sr0] ASC=0x21 ASCQ=0x0
    sr 1:0:0:0: [sr0] CDB: cdb[0]=0x28: 28 00 00 00 00 00 00 00 01 00
    end_request: I/O error, dev sr0, sector 0
    sr 1:0:0:0: [sr0] Result: hostbyte=0x00 driverbyte=0x08
    sr 1:0:0:0: [sr0] Sense Key : 0x5 [current]
    sr 1:0:0:0: [sr0] ASC=0x21 ASCQ=0x0
    sr 1:0:0:0: [sr0] CDB: cdb[0]=0x28: 28 00 00 00 00 00 00 00 01 00
    end_request: I/O error, dev sr0, sector 0
    cdrom: This disc doesn't have any tracks I recognize!
    sr 1:0:0:0: [sr0] Result: hostbyte=0x00 driverbyte=0x08
    sr 1:0:0:0: [sr0] Sense Key : 0x5 [current]
    sr 1:0:0:0: [sr0] ASC=0x21 ASCQ=0x0
    sr 1:0:0:0: [sr0] CDB: cdb[0]=0x28: 28 00 00 00 00 00 00 00 01 00
    end_request: I/O error, dev sr0, sector 0
    sr 1:0:0:0: [sr0] Result: hostbyte=0x00 driverbyte=0x08
    sr 1:0:0:0: [sr0] Sense Key : 0x5 [current]
    sr 1:0:0:0: [sr0] ASC=0x21 ASCQ=0x0
    sr 1:0:0:0: [sr0] CDB: cdb[0]=0x28: 28 00 00 00 00 00 00 00 01 00
    end_request: I/O error, dev sr0, sector 0
    sr 1:0:0:0: [sr0] Result: hostbyte=0x00 driverbyte=0x08
    sr 1:0:0:0: [sr0] Sense Key : 0x5 [current]
    sr 1:0:0:0: [sr0] ASC=0x21 ASCQ=0x0
    sr 1:0:0:0: [sr0] CDB: cdb[0]=0x28: 28 00 00 00 00 00 00 00 01 00
    end_request: I/O error, dev sr0, sector 0
    sr 1:0:0:0: [sr0] Result: hostbyte=0x00 driverbyte=0x08
    sr 1:0:0:0: [sr0] Sense Key : 0x5 [current]
    sr 1:0:0:0: [sr0] ASC=0x21 ASCQ=0x0
    sr 1:0:0:0: [sr0] CDB: cdb[0]=0x28: 28 00 00 00 00 00 00 00 01 00
    end_request: I/O error, dev sr0, sector 0
    sr 1:0:0:0: [sr0] Result: hostbyte=0x00 driverbyte=0x08
    sr 1:0:0:0: [sr0] Sense Key : 0x5 [current]
    sr 1:0:0:0: [sr0] ASC=0x21 ASCQ=0x0
    sr 1:0:0:0: [sr0] CDB: cdb[0]=0x28: 28 00 00 00 00 00 00 00 01 00
    end_request: I/O error, dev sr0, sector 0
    sr 1:0:0:0: [sr0] Result: hostbyte=0x00 driverbyte=0x08
    sr 1:0:0:0: [sr0] Sense Key : 0x5 [current]
    sr 1:0:0:0: [sr0] ASC=0x21 ASCQ=0x0
    sr 1:0:0:0: [sr0] CDB: cdb[0]=0x28: 28 00 00 00 00 00 00 00 01 00
    end_request: I/O error, dev sr0, sector 0
    sr 1:0:0:0: [sr0] Result: hostbyte=0x00 driverbyte=0x08
    sr 1:0:0:0: [sr0] Sense Key : 0x5 [current]
    sr 1:0:0:0: [sr0] ASC=0x21 ASCQ=0x0
    sr 1:0:0:0: [sr0] CDB: cdb[0]=0x28: 28 00 00 00 00 00 00 00 01 00
    end_request: I/O error, dev sr0, sector 0
    sr 1:0:0:0: [sr0] Result: hostbyte=0x00 driverbyte=0x08
    sr 1:0:0:0: [sr0] Sense Key : 0x5 [current]
    sr 1:0:0:0: [sr0] ASC=0x21 ASCQ=0x0
    sr 1:0:0:0: [sr0] CDB: cdb[0]=0x28: 28 00 00 00 00 00 00 00 01 00
    end_request: I/O error, dev sr0, sector 0
    sr 1:0:0:0: [sr0] Result: hostbyte=0x00 driverbyte=0x08
    sr 1:0:0:0: [sr0] Sense Key : 0x5 [current]
    sr 1:0:0:0: [sr0] ASC=0x21 ASCQ=0x0
    sr 1:0:0:0: [sr0] CDB: cdb[0]=0x28: 28 00 00 00 00 00 00 00 01 00
    end_request: I/O error, dev sr0, sector 0
    sr 1:0:0:0: [sr0] Result: hostbyte=0x00 driverbyte=0x08
    sr 1:0:0:0: [sr0] Sense Key : 0x5 [current]
    sr 1:0:0:0: [sr0] ASC=0x21 ASCQ=0x0
    sr 1:0:0:0: [sr0] CDB: cdb[0]=0x28: 28 00 00 00 00 00 00 00 01 00
    end_request: I/O error, dev sr0, sector 0
    sr 1:0:0:0: [sr0] Result: hostbyte=0x00 driverbyte=0x08
    sr 1:0:0:0: [sr0] Sense Key : 0x5 [current]
    sr 1:0:0:0: [sr0] ASC=0x21 ASCQ=0x0
    sr 1:0:0:0: [sr0] CDB: cdb[0]=0x28: 28 00 00 00 00 00 00 00 01 00
    end_request: I/O error, dev sr0, sector 0
    sr 1:0:0:0: [sr0] Result: hostbyte=0x00 driverbyte=0x08
    sr 1:0:0:0: [sr0] Sense Key : 0x5 [current]
    sr 1:0:0:0: [sr0] ASC=0x21 ASCQ=0x0
    sr 1:0:0:0: [sr0] CDB: cdb[0]=0x28: 28 00 00 00 00 00 00 00 01 00
    end_request: I/O error, dev sr0, sector 0
    sr 1:0:0:0: [sr0] Result: hostbyte=0x00 driverbyte=0x08
    sr 1:0:0:0: [sr0] Sense Key : 0x5 [current]
    sr 1:0:0:0: [sr0] ASC=0x21 ASCQ=0x0
    sr 1:0:0:0: [sr0] CDB: cdb[0]=0x28: 28 00 00 00 00 00 00 00 01 00
    end_request: I/O error, dev sr0, sector 0
    sr 1:0:0:0: [sr0] Result: hostbyte=0x00 driverbyte=0x08
    sr 1:0:0:0: [sr0] Sense Key : 0x5 [current]
    sr 1:0:0:0: [sr0] ASC=0x21 ASCQ=0x0
    sr 1:0:0:0: [sr0] CDB: cdb[0]=0x28: 28 00 00 00 00 00 00 00 01 00
    end_request: I/O error, dev sr0, sector 0
    sr 1:0:0:0: [sr0] Result: hostbyte=0x00 driverbyte=0x08
    sr 1:0:0:0: [sr0] Sense Key : 0x5 [current]
    sr 1:0:0:0: [sr0] ASC=0x21 ASCQ=0x0
    sr 1:0:0:0: [sr0] CDB: cdb[0]=0x28: 28 00 00 00 00 00 00 00 01 00
    end_request: I/O error, dev sr0, sector 0
    sr 1:0:0:0: [sr0] Result: hostbyte=0x00 driverbyte=0x08
    sr 1:0:0:0: [sr0] Sense Key : 0x5 [current]
    sr 1:0:0:0: [sr0] ASC=0x21 ASCQ=0x0
    sr 1:0:0:0: [sr0] CDB: cdb[0]=0x28: 28 00 00 00 00 00 00 00 01 00
    end_request: I/O error, dev sr0, sector 0
    sr 1:0:0:0: [sr0] Result: hostbyte=0x00 driverbyte=0x08
    sr 1:0:0:0: [sr0] Sense Key : 0x5 [current]
    sr 1:0:0:0: [sr0] ASC=0x21 ASCQ=0x0
    sr 1:0:0:0: [sr0] CDB: cdb[0]=0x28: 28 00 00 00 00 00 00 00 01 00
    end_request: I/O error, dev sr0, sector 0
    sr 1:0:0:0: [sr0] Result: hostbyte=0x00 driverbyte=0x08
    sr 1:0:0:0: [sr0] Sense Key : 0x5 [current]
    sr 1:0:0:0: [sr0] ASC=0x21 ASCQ=0x0
    sr 1:0:0:0: [sr0] CDB: cdb[0]=0x28: 28 00 00 00 00 00 00 00 01 00
    end_request: I/O error, dev sr0, sector 0
    sr 1:0:0:0: [sr0] Result: hostbyte=0x00 driverbyte=0x08
    sr 1:0:0:0: [sr0] Sense Key : 0x5 [current]
    sr 1:0:0:0: [sr0] ASC=0x21 ASCQ=0x0
    sr 1:0:0:0: [sr0] CDB: cdb[0]=0x28: 28 00 00 00 00 00 00 00 01 00
    end_request: I/O error, dev sr0, sector 0
    sr 1:0:0:0: [sr0] Result: hostbyte=0x00 driverbyte=0x08
    sr 1:0:0:0: [sr0] Sense Key : 0x5 [current]
    sr 1:0:0:0: [sr0] ASC=0x21 ASCQ=0x0
    sr 1:0:0:0: [sr0] CDB: cdb[0]=0x28: 28 00 00 00 00 00 00 00 01 00
    end_request: I/O error, dev sr0, sector 0
    sr 1:0:0:0: [sr0] Result: hostbyte=0x00 driverbyte=0x08
    sr 1:0:0:0: [sr0] Sense Key : 0x5 [current]
    sr 1:0:0:0: [sr0] ASC=0x21 ASCQ=0x0
    sr 1:0:0:0: [sr0] CDB: cdb[0]=0x28: 28 00 00 00 00 00 00 00 01 00
    end_request: I/O error, dev sr0, sector 0
    sr 1:0:0:0: [sr0] Result: hostbyte=0x00 driverbyte=0x08
    sr 1:0:0:0: [sr0] Sense Key : 0x5 [current]
    sr 1:0:0:0: [sr0] ASC=0x21 ASCQ=0x0
    sr 1:0:0:0: [sr0] CDB: cdb[0]=0x28: 28 00 00 00 00 00 00 00 01 00
    end_request: I/O error, dev sr0, sector 0
    sr 1:0:0:0: [sr0] Result: hostbyte=0x00 driverbyte=0x08
    sr 1:0:0:0: [sr0] Sense Key : 0x5 [current]
    sr 1:0:0:0: [sr0] ASC=0x21 ASCQ=0x0
    sr 1:0:0:0: [sr0] CDB: cdb[0]=0x28: 28 00 00 00 00 00 00 00 01 00
    end_request: I/O error, dev sr0, sector 0
    sr 1:0:0:0: [sr0] Result: hostbyte=0x00 driverbyte=0x08
    sr 1:0:0:0: [sr0] Sense Key : 0x5 [current]
    sr 1:0:0:0: [sr0] ASC=0x21 ASCQ=0x0
    sr 1:0:0:0: [sr0] CDB: cdb[0]=0x28: 28 00 00 00 00 00 00 00 01 00
    end_request: I/O error, dev sr0, sector 0
    sr 1:0:0:0: [sr0] Result: hostbyte=0x00 driverbyte=0x08
    sr 1:0:0:0: [sr0] Sense Key : 0x5 [current]
    sr 1:0:0:0: [sr0] ASC=0x21 ASCQ=0x0
    sr 1:0:0:0: [sr0] CDB: cdb[0]=0x28: 28 00 00 00 00 00 00 00 01 00
    end_request: I/O error, dev sr0, sector 0
    sr 1:0:0:0: [sr0] Result: hostbyte=0x00 driverbyte=0x08
    sr 1:0:0:0: [sr0] Sense Key : 0x5 [current]
    sr 1:0:0:0: [sr0] ASC=0x21 ASCQ=0x0
    sr 1:0:0:0: [sr0] CDB: cdb[0]=0x28: 28 00 00 00 00 00 00 00 01 00
    end_request: I/O error, dev sr0, sector 0
    sr 1:0:0:0: [sr0] Result: hostbyte=0x00 driverbyte=0x08
    sr 1:0:0:0: [sr0] Sense Key : 0x5 [current]
    sr 1:0:0:0: [sr0] ASC=0x21 ASCQ=0x0
    sr 1:0:0:0: [sr0] CDB: cdb[0]=0x28: 28 00 00 00 00 00 00 00 01 00
    end_request: I/O error, dev sr0, sector 0
    sr 1:0:0:0: [sr0] Result: hostbyte=0x00 driverbyte=0x08
    sr 1:0:0:0: [sr0] Sense Key : 0x5 [current]
    sr 1:0:0:0: [sr0] ASC=0x21 ASCQ=0x0
    sr 1:0:0:0: [sr0] CDB: cdb[0]=0x28: 28 00 00 00 00 00 00 00 01 00
    end_request: I/O error, dev sr0, sector 0
    sr 1:0:0:0: [sr0] Result: hostbyte=0x00 driverbyte=0x08
    sr 1:0:0:0: [sr0] Sense Key : 0x5 [current]
    sr 1:0:0:0: [sr0] ASC=0x21 ASCQ=0x0
    sr 1:0:0:0: [sr0] CDB: cdb[0]=0x28: 28 00 00 00 00 00 00 00 01 00
    end_request: I/O error, dev sr0, sector 0
    sr 1:0:0:0: [sr0] Result: hostbyte=0x00 driverbyte=0x08
    sr 1:0:0:0: [sr0] Sense Key : 0x5 [current]
    sr 1:0:0:0: [sr0] ASC=0x21 ASCQ=0x0
    sr 1:0:0:0: [sr0] CDB: cdb[0]=0x28: 28 00 00 00 00 00 00 00 01 00
    end_request: I/O error, dev sr0, sector 0
    sr 1:0:0:0: [sr0] Result: hostbyte=0x00 driverbyte=0x08
    sr 1:0:0:0: [sr0] Sense Key : 0x5 [current]
    sr 1:0:0:0: [sr0] ASC=0x21 ASCQ=0x0
    sr 1:0:0:0: [sr0] CDB: cdb[0]=0x28: 28 00 00 00 00 00 00 00 01 00
    end_request: I/O error, dev sr0, sector 0
    sr 1:0:0:0: [sr0] Result: hostbyte=0x00 driverbyte=0x08
    sr 1:0:0:0: [sr0] Sense Key : 0x5 [current]
    sr 1:0:0:0: [sr0] ASC=0x21 ASCQ=0x0
    sr 1:0:0:0: [sr0] CDB: cdb[0]=0x28: 28 00 00 00 00 00 00 00 01 00
    end_request: I/O error, dev sr0, sector 0
    sr 1:0:0:0: [sr0] Result: hostbyte=0x00 driverbyte=0x08
    sr 1:0:0:0: [sr0] Sense Key : 0x5 [current]
    sr 1:0:0:0: [sr0] ASC=0x21 ASCQ=0x0
    sr 1:0:0:0: [sr0] CDB: cdb[0]=0x28: 28 00 00 00 00 00 00 00 01 00
    end_request: I/O error, dev sr0, sector 0
    sr 1:0:0:0: [sr0] Result: hostbyte=0x00 driverbyte=0x08
    sr 1:0:0:0: [sr0] Sense Key : 0x5 [current]
    sr 1:0:0:0: [sr0] ASC=0x21 ASCQ=0x0
    sr 1:0:0:0: [sr0] CDB: cdb[0]=0x28: 28 00 00 00 00 00 00 00 01 00
    end_request: I/O error, dev sr0, sector 0
    sr 1:0:0:0: [sr0] Result: hostbyte=0x00 driverbyte=0x08
    sr 1:0:0:0: [sr0] Sense Key : 0x5 [current]
    sr 1:0:0:0: [sr0] ASC=0x21 ASCQ=0x0
    sr 1:0:0:0: [sr0] CDB: cdb[0]=0x28: 28 00 00 00 00 00 00 00 01 00
    end_request: I/O error, dev sr0, sector 0
    sr 1:0:0:0: [sr0] Result: hostbyte=0x00 driverbyte=0x08
    sr 1:0:0:0: [sr0] Sense Key : 0x5 [current]
    sr 1:0:0:0: [sr0] ASC=0x21 ASCQ=0x0
    sr 1:0:0:0: [sr0] CDB: cdb[0]=0x28: 28 00 00 00 00 00 00 00 01 00
    end_request: I/O error, dev sr0, sector 0
    sr 1:0:0:0: [sr0] Result: hostbyte=0x00 driverbyte=0x08
    sr 1:0:0:0: [sr0] Sense Key : 0x5 [current]
    sr 1:0:0:0: [sr0] ASC=0x21 ASCQ=0x0
    sr 1:0:0:0: [sr0] CDB: cdb[0]=0x28: 28 00 00 00 00 00 00 00 01 00
    end_request: I/O error, dev sr0, sector 0
    sr 1:0:0:0: [sr0] Result: hostbyte=0x00 driverbyte=0x08
    sr 1:0:0:0: [sr0] Sense Key : 0x5 [current]
    sr 1:0:0:0: [sr0] ASC=0x21 ASCQ=0x0
    sr 1:0:0:0: [sr0] CDB: cdb[0]=0x28: 28 00 00 00 00 00 00 00 01 00
    end_request: I/O error, dev sr0, sector 0
    sr 1:0:0:0: [sr0] Result: hostbyte=0x00 driverbyte=0x08
    sr 1:0:0:0: [sr0] Sense Key : 0x5 [current]
    sr 1:0:0:0: [sr0] ASC=0x21 ASCQ=0x0
    sr 1:0:0:0: [sr0] CDB: cdb[0]=0x28: 28 00 00 00 00 00 00 00 01 00
    end_request: I/O error, dev sr0, sector 0
    sr 1:0:0:0: [sr0] Result: hostbyte=0x00 driverbyte=0x08
    sr 1:0:0:0: [sr0] Sense Key : 0x5 [current]
    sr 1:0:0:0: [sr0] ASC=0x21 ASCQ=0x0
    sr 1:0:0:0: [sr0] CDB: cdb[0]=0x28: 28 00 00 00 00 00 00 00 01 00
    end_request: I/O error, dev sr0, sector 0
    sr 1:0:0:0: [sr0] Result: hostbyte=0x00 driverbyte=0x08
    sr 1:0:0:0: [sr0] Sense Key : 0x5 [current]
    sr 1:0:0:0: [sr0] ASC=0x21 ASCQ=0x0
    sr 1:0:0:0: [sr0] CDB: cdb[0]=0x28: 28 00 00 00 00 00 00 00 01 00
    end_request: I/O error, dev sr0, sector 0
    sr 1:0:0:0: [sr0] Result: hostbyte=0x00 driverbyte=0x08
    sr 1:0:0:0: [sr0] Sense Key : 0x5 [current]
    sr 1:0:0:0: [sr0] ASC=0x21 ASCQ=0x0
    sr 1:0:0:0: [sr0] CDB: cdb[0]=0x28: 28 00 00 00 00 00 00 00 01 00
    end_request: I/O error, dev sr0, sector 0
    There is no issue with the DVD in windows.
    I did manage to get it to mount after fiddling with it, but I would prefer that it did it all th time without issues.
    dmesg when it works:
    ISO 9660 Extensions: Microsoft Joliet Level 3
    ISO 9660 Extensions: RRIP_1991A

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