** Description changed:

  The only problem we have with a Ubuntu 8.04 and 8.04.1 but with 7.10 or 7.04 
... no
+ CD has no mistakes.
  ======================================================================
  [EMAIL PROTECTED]:~$ lsb_release -rd
  Description:  Ubuntu 8.04.1
  Release:      8.04
  ========================================================================
- kernel.log:
+ /var/log/kernel.log
  Aug  7 21:52:11 ionel-desktop kernel: [ 4953.673383] sr 3:0:0:0: [sr0] 
Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE,SUGGEST_OK
  Aug  7 21:52:11 ionel-desktop kernel: [ 4953.673401] sr 3:0:0:0: [sr0] Sense 
Key : Hardware Error [current] 
  Aug  7 21:52:11 ionel-desktop kernel: [ 4953.673411] sr 3:0:0:0: [sr0] Add. 
Sense: Logical unit communication CRC error (Ultra-DMA/32)
  Aug  7 21:52:11 ionel-desktop kernel: [ 4953.673423] end_request: I/O error, 
dev sr0, sector 72
  Aug  7 21:52:11 ionel-desktop kernel: [ 4953.673429] printk: 1 messages 
suppressed.
  Aug  7 21:52:11 ionel-desktop kernel: [ 4953.673435] Buffer I/O error on 
device sr0, logical block 18
  Aug  7 21:52:11 ionel-desktop kernel: [ 4953.673444] Buffer I/O error on 
device sr0, logical block 19
  Aug  7 21:52:11 ionel-desktop kernel: [ 4953.684219] sr 3:0:0:0: [sr0] 
Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE,SUGGEST_OK
  Aug  7 21:52:11 ionel-desktop kernel: [ 4953.684238] sr 3:0:0:0: [sr0] Sense 
Key : Hardware Error [current] 
  Aug  7 21:52:11 ionel-desktop kernel: [ 4953.684247] sr 3:0:0:0: [sr0] Add. 
Sense: Logical unit communication CRC error (Ultra-DMA/32)
  Aug  7 21:52:11 ionel-desktop kernel: [ 4953.684260] end_request: I/O error, 
dev sr0, sector 88
  Aug  7 21:52:11 ionel-desktop kernel: [ 4953.684269] Buffer I/O error on 
device sr0, logical block 22
  Aug  7 21:52:11 ionel-desktop kernel: [ 4953.684281] Buffer I/O error on 
device sr0, logical block 23
  Aug  7 21:52:11 ionel-desktop kernel: [ 4953.684288] Buffer I/O error on 
device sr0, logical block 24
  Aug  7 21:52:11 ionel-desktop kernel: [ 4953.684295] Buffer I/O error on 
device sr0, logical block 25
  Aug  7 21:52:11 ionel-desktop kernel: [ 4953.684302] Buffer I/O error on 
device sr0, logical block 26
  Aug  7 21:52:11 ionel-desktop kernel: [ 4953.684308] Buffer I/O error on 
device sr0, logical block 27
  Aug  7 21:52:11 ionel-desktop kernel: [ 4953.684314] Buffer I/O error on 
device sr0, logical block 28
  Aug  7 21:52:11 ionel-desktop kernel: [ 4953.684320] Buffer I/O error on 
device sr0, logical block 29
  Aug  7 21:52:11 ionel-desktop kernel: [ 4953.728459] sr 3:0:0:0: [sr0] 
Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE,SUGGEST_OK
  Aug  7 21:52:11 ionel-desktop kernel: [ 4953.728479] sr 3:0:0:0: [sr0] Sense 
Key : Hardware Error [current] 
  Aug  7 21:52:11 ionel-desktop kernel: [ 4953.728488] sr 3:0:0:0: [sr0] Add. 
Sense: Logical unit communication CRC error (Ultra-DMA/32)
  Aug  7 21:52:11 ionel-desktop kernel: [ 4953.728500] end_request: I/O error, 
dev sr0, sector 72
  Aug  7 21:52:11 ionel-desktop kernel: [ 4954.220006] UDF-fs: No VRS found
  Aug  7 21:52:12 ionel-desktop kernel: [ 4954.248395] ISO 9660 Extensions: 
Microsoft Joliet Level 3
  Aug  7 21:52:12 ionel-desktop kernel: [ 4954.250369] sr 3:0:0:0: [sr0] 
Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE,SUGGEST_OK
  Aug  7 21:52:12 ionel-desktop kernel: [ 4954.250383] sr 3:0:0:0: [sr0] Sense 
Key : Hardware Error [current] 
  Aug  7 21:52:12 ionel-desktop kernel: [ 4954.250393] sr 3:0:0:0: [sr0] Add. 
Sense: Logical unit communication CRC error (Ultra-DMA/32)
  Aug  7 21:52:12 ionel-desktop kernel: [ 4954.250405] end_request: I/O error, 
dev sr0, sector 116
  Aug  7 21:52:12 ionel-desktop kernel: [ 4954.251836] ISOFS: unable to read 
i-node block
  Aug  7 21:52:12 ionel-desktop kernel: [ 4954.251848] ISOFS: changing to 
secondary root
  Aug  7 21:52:13 ionel-desktop kernel: [ 4955.637641] sr 3:0:0:0: [sr0] 
Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE,SUGGEST_OK
  Aug  7 21:52:13 ionel-desktop kernel: [ 4955.637659] sr 3:0:0:0: [sr0] Sense 
Key : Hardware Error [current] 
  Aug  7 21:52:13 ionel-desktop kernel: [ 4955.637668] sr 3:0:0:0: [sr0] Add. 
Sense: Logical unit communication CRC error (Ultra-DMA/32)
  Aug  7 21:52:13 ionel-desktop kernel: [ 4955.637681] end_request: I/O error, 
dev sr0, sector 388
  Aug  7 21:52:13 ionel-desktop kernel: [ 4955.638575] ISOFS: unable to read 
i-node block
  Aug  7 21:52:13 ionel-desktop kernel: [ 4955.667074] sr 3:0:0:0: [sr0] 
Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE,SUGGEST_OK
  Aug  7 21:52:13 ionel-desktop kernel: [ 4955.667095] sr 3:0:0:0: [sr0] Sense 
Key : Hardware Error [current] 
  Aug  7 21:52:13 ionel-desktop kernel: [ 4955.667105] sr 3:0:0:0: [sr0] Add. 
Sense: Logical unit communication CRC error (Ultra-DMA/32)
  Aug  7 21:52:13 ionel-desktop kernel: [ 4955.667117] end_request: I/O error, 
dev sr0, sector 672
  Aug  7 21:52:13 ionel-desktop kernel: [ 4955.672552] sr 3:0:0:0: [sr0] 
Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE,SUGGEST_OK
  Aug  7 21:52:13 ionel-desktop kernel: [ 4955.672571] sr 3:0:0:0: [sr0] Sense 
Key : Hardware Error [current] 
  Aug  7 21:52:13 ionel-desktop kernel: [ 4955.672581] sr 3:0:0:0: [sr0] Add. 
Sense: Logical unit communication CRC error (Ultra-DMA/32)
  Aug  7 21:52:13 ionel-desktop kernel: [ 4955.672593] end_request: I/O error, 
dev sr0, sector 676
  Aug  7 21:52:13 ionel-desktop kernel: [ 4955.679431] sr 3:0:0:0: [sr0] 
Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE,SUGGEST_OK
  Aug  7 21:52:13 ionel-desktop kernel: [ 4955.679447] sr 3:0:0:0: [sr0] Sense 
Key : Hardware Error [current] 
  Aug  7 21:52:13 ionel-desktop kernel: [ 4955.679457] sr 3:0:0:0: [sr0] Add. 
Sense: Logical unit communication CRC error (Ultra-DMA/32)
  Aug  7 21:52:13 ionel-desktop kernel: [ 4955.679470] end_request: I/O error, 
dev sr0, sector 672
  Aug  7 21:52:13 ionel-desktop kernel: [ 4955.724878] sr 3:0:0:0: [sr0] 
Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE,SUGGEST_OK
  Aug  7 21:52:13 ionel-desktop kernel: [ 4955.724899] sr 3:0:0:0: [sr0] Sense 
Key : Hardware Error [current] 
  Aug  7 21:52:13 ionel-desktop kernel: [ 4955.724940] sr 3:0:0:0: [sr0] Add. 
Sense: Logical unit communication CRC error (Ultra-DMA/32)
  Aug  7 21:52:13 ionel-desktop kernel: [ 4955.724952] end_request: I/O error, 
dev sr0, sector 1064
  Aug  7 21:52:13 ionel-desktop kernel: [ 4955.804089] sr 3:0:0:0: [sr0] 
Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE,SUGGEST_OK
  Aug  7 21:52:13 ionel-desktop kernel: [ 4955.804108] sr 3:0:0:0: [sr0] Sense 
Key : Hardware Error [current] 
  Aug  7 21:52:13 ionel-desktop kernel: [ 4955.804118] sr 3:0:0:0: [sr0] Add. 
Sense: Logical unit communication CRC error (Ultra-DMA/32)
  Aug  7 21:52:13 ionel-desktop kernel: [ 4955.804130] end_request: I/O error, 
dev sr0, sector 1064
  Aug  7 21:52:54 ionel-desktop kernel: [ 4997.184501] sr 3:0:0:0: [sr0] 
Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE,SUGGEST_OK
  Aug  7 21:52:54 ionel-desktop kernel: [ 4997.184519] sr 3:0:0:0: [sr0] Sense 
Key : Hardware Error [current] 
  Aug  7 21:52:54 ionel-desktop kernel: [ 4997.184529] sr 3:0:0:0: [sr0] Add. 
Sense: Logical unit communication CRC error (Ultra-DMA/32)
  Aug  7 21:52:54 ionel-desktop kernel: [ 4997.184542] end_request: I/O error, 
dev sr0, sector 1064
  Aug  7 21:52:54 ionel-desktop kernel: [ 4997.184549] printk: 50 messages 
suppressed.
  Aug  7 21:52:54 ionel-desktop kernel: [ 4997.184555] Buffer I/O error on 
device sr0, logical block 266
  Aug  7 21:52:54 ionel-desktop kernel: [ 4997.184567] Buffer I/O error on 
device sr0, logical block 267
  ========================================================================
+ /var/log/syslog
+ Aug  7 22:50:26 ionel-desktop -- MARK --
+ Aug  7 22:56:36 ionel-desktop kernel: [ 8816.051841] sr 3:0:0:0: [sr0] 
Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE,SUGGEST_OK
+ Aug  7 22:56:36 ionel-desktop kernel: [ 8816.051860] sr 3:0:0:0: [sr0] Sense 
Key : Hardware Error [current] 
+ Aug  7 22:56:36 ionel-desktop kernel: [ 8816.051870] sr 3:0:0:0: [sr0] Add. 
Sense: Logical unit communication CRC error (Ultra-DMA/32)
+ Aug  7 22:56:36 ionel-desktop kernel: [ 8816.051882] end_request: I/O error, 
dev sr0, sector 1064
+ Aug  7 22:56:36 ionel-desktop kernel: [ 8816.051892] Buffer I/O error on 
device sr0, logical block 266
+ Aug  7 22:56:36 ionel-desktop kernel: [ 8816.051903] Buffer I/O error on 
device sr0, logical block 267
+ =======================================================================
+ /var/log/messages
+ Aug  7 22:50:26 ionel-desktop -- MARK --
+ Aug  7 22:56:36 ionel-desktop kernel: [ 8816.051841] sr 3:0:0:0: [sr0] 
Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE,SUGGEST_OK
+ Aug  7 22:56:36 ionel-desktop kernel: [ 8816.051860] sr 3:0:0:0: [sr0] Sense 
Key : Hardware Error [current] 
+ Aug  7 22:56:36 ionel-desktop kernel: [ 8816.051870] sr 3:0:0:0: [sr0] Add. 
Sense: Logical unit communication CRC error (Ultra-DMA/32)
+ Aug  7 22:56:36 ionel-desktop kernel: [ 8816.051882] end_request: I/O error, 
dev sr0, sector 1064
+ =======================================================================
  [EMAIL PROTECTED]:~$ grep 'ide' /var/log/syslog
  Aug  7 19:41:45 ionel-desktop kernel: [    0.000000] BIOS-provided physical 
RAM map:
  Aug  7 19:41:45 ionel-desktop kernel: [    0.000000] ACPI: IRQ0 used by 
override.
  Aug  7 19:41:45 ionel-desktop kernel: [    0.000000] ACPI: IRQ2 used by 
override.
  Aug  7 19:41:45 ionel-desktop kernel: [    0.000000] ACPI: IRQ9 used by 
override.
  Aug  7 19:41:45 ionel-desktop kernel: [   22.296747] CPU: After generic 
identify, caps: 0183fbff c1c7fbff 00000000 00000000 00000000 00000000 00000000 
00000000
  Aug  7 19:41:45 ionel-desktop kernel: [   24.752903] Boot video device is 
0000:01:00.0
  Aug  7 19:56:31 ionel-desktop kernel: [    0.000000] BIOS-provided physical 
RAM map:
  Aug  7 19:56:31 ionel-desktop kernel: [    0.000000] ACPI: IRQ0 used by 
override.
  Aug  7 19:56:31 ionel-desktop kernel: [    0.000000] ACPI: IRQ2 used by 
override.
  Aug  7 19:56:31 ionel-desktop kernel: [    0.000000] ACPI: IRQ9 used by 
override.
  Aug  7 19:56:31 ionel-desktop kernel: [   16.463394] CPU: After generic 
identify, caps: 0183fbff c1c7fbff 00000000 00000000 00000000 00000000 00000000 
00000000
  Aug  7 19:56:32 ionel-desktop kernel: [   18.919455] Boot video device is 
0000:01:00.0
  Aug  7 20:29:54 ionel-desktop kernel: [    0.000000] BIOS-provided physical 
RAM map:
  Aug  7 20:29:54 ionel-desktop kernel: [    0.000000] ACPI: IRQ0 used by 
override.
  Aug  7 20:29:54 ionel-desktop kernel: [    0.000000] ACPI: IRQ2 used by 
override.
  Aug  7 20:29:54 ionel-desktop kernel: [    0.000000] ACPI: IRQ9 used by 
override.
  Aug  7 20:29:54 ionel-desktop kernel: [   15.899951] CPU: After generic 
identify, caps: 0183fbff c1c7fbff 00000000 00000000 00000000 00000000 00000000 
00000000
  Aug  7 20:29:54 ionel-desktop kernel: [   18.355949] Boot video device is 
0000:01:00.0
  Aug  7 20:34:47 ionel-desktop kernel: [    0.000000] BIOS-provided physical 
RAM map:
  Aug  7 20:34:47 ionel-desktop kernel: [    0.000000] ACPI: IRQ0 used by 
override.
  Aug  7 20:34:47 ionel-desktop kernel: [    0.000000] ACPI: IRQ2 used by 
override.
  Aug  7 20:34:47 ionel-desktop kernel: [    0.000000] ACPI: IRQ9 used by 
override.
  Aug  7 20:34:47 ionel-desktop kernel: [   15.235469] CPU: After generic 
identify, caps: 0183fbff c1c7fbff 00000000 00000000 00000000 00000000 00000000 
00000000
  Aug  7 20:34:47 ionel-desktop kernel: [   17.692178] Boot video device is 
0000:01:00.0
  Aug  7 20:30:27 ionel-desktop kernel: [    0.000000] BIOS-provided physical 
RAM map:
  Aug  7 20:30:27 ionel-desktop kernel: [    0.000000] ACPI: IRQ0 used by 
override.
  Aug  7 20:30:27 ionel-desktop kernel: [    0.000000] ACPI: IRQ2 used by 
override.
  Aug  7 20:30:27 ionel-desktop kernel: [    0.000000] ACPI: IRQ9 used by 
override.
  Aug  7 20:30:27 ionel-desktop kernel: [   16.109049] CPU: After generic 
identify, caps: 0183fbff c1c7fbff 00000000 00000000 00000000 00000000 00000000 
00000000
  Aug  7 20:30:27 ionel-desktop kernel: [   18.565142] Boot video device is 
0000:01:00.0
  
  ======================================================================
  [EMAIL PROTECTED]:~$ cat /etc/udev/rules.d/70-persistent-cd.rules
  # This file maintains persistent names for CD/DVD reader and writer devices.
  # See udev(7) for syntax.
  #
  # Entries are automatically added by the 75-persistent-cd-generator.rules
  # file; however you are also free to add your own entries provided you
  # add the ENV{GENERATED}=1 flag to your own rules as well.
  # DRW-1608P3S (pci-0000:00:0f.1-scsi-1:0:0:0)
  ENV{ID_CDROM}=="?*", ENV{ID_PATH}=="pci-0000:00:0f.1-scsi-1:0:0:0", 
SYMLINK+="cdrom", ENV{GENERATED}="1"
  ENV{ID_CDROM}=="?*", ENV{ID_PATH}=="pci-0000:00:0f.1-scsi-1:0:0:0", 
SYMLINK+="cdrw", ENV{GENERATED}="1"
  ENV{ID_CDROM}=="?*", ENV{ID_PATH}=="pci-0000:00:0f.1-scsi-1:0:0:0", 
SYMLINK+="dvd", ENV{GENERATED}="1"
  ENV{ID_CDROM}=="?*", ENV{ID_PATH}=="pci-0000:00:0f.1-scsi-1:0:0:0", 
SYMLINK+="dvdrw", ENV{GENERATED}="1"
  ========================================================================
  [EMAIL PROTECTED]:~$ sudo lshw -C disk
  [sudo] password for ionel: 
    *-disk                  
         description: ATA Disk
         product: Maxtor 6Y120L0
         vendor: Maxtor
         physical id: 0
         bus info: [EMAIL PROTECTED]:0.0.0
         logical name: /dev/sda
         version: YAR4
         serial: Y36C3PAE
         size: 114GiB (122GB)
         capabilities: partitioned partitioned:dos
         configuration: ansiversion=5 signature=000cb0ae
    *-cdrom
         description: DVD-RAM writer
         product: DRW-1608P3S
         vendor: ASUS
         physical id: 1
         bus info: [EMAIL PROTECTED]:0.0.0
         logical name: /dev/cdrom
         logical name: /dev/dvd
         logical name: /dev/scd0
         logical name: /dev/sr0
         logical name: /media/cdrom0
         version: 1.24
         capabilities: removable audio cd-r cd-rw dvd dvd-r dvd-ram
         configuration: ansiversion=5 mount.fstype=iso9660 
mount.options=ro,nosuid,nodev,relatime state=mounted status=ready
       *-medium
            physical id: 0
            logical name: /dev/cdrom
            logical name: /media/cdrom0
            configuration: mount.fstype=iso9660 
mount.options=ro,nosuid,nodev,relatime state=mounted

-- 
Failure to read or write on any CD or DVD
https://bugs.launchpad.net/bugs/255843
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