I'm sorry, please ignore my previous posting. I accidentally did that
(partially) on Ubuntu 8.04 LTS.

On Kubuntu 8.10 (kernel 2.6.27.11) I get the following:

Blank CD: Fails
/var/log/syslog says:
  cdrom: This disc doesn't have any tracks I recognize!
  end_request: I/O error, dev sr1, sector 0
  Buffer I/O error on device sr1, logical block 0
  end_request: I/O error, dev sr1, sector 0
  Buffer I/O error on device sr1, logical block 0

Data CD: works OK

Music CD: fails as per original posting (like the movie DVD below)

Blank DVD: Fails
/var/log/syslog says:
  cdrom: This disc doesn't have any tracks I recognize!
(but no other errors)

Data DVD (DVD-ROM): Fails
/var/log/syslog says:
  UDF-fs: No VRS found
  ISO 9660 Extensions: Microsoft Joliet Level 1
  ISOFS: changing to secondary root
(Don't look like errors, but Dolphin is unable to show any contents of the disc)

Movie DVD: Fails
/var/log/syslog says:
  UDF-fs INFO UDF: Mounting volume '...
  end_request: I/O error, dev sr1, sector 1308
  Buffer I/O error on device sr1, logical block 327
  Buffer I/O error on device sr1, logical block 328
  Buffer I/O error on device sr1, logical block 329
  Buffer I/O error on device sr1, logical block 330
  Buffer I/O error on device sr1, logical block 331
  Buffer I/O error on device sr1, logical block 332
  Buffer I/O error on device sr1, logical block 333
  Buffer I/O error on device sr1, logical block 334
  Buffer I/O error on device sr1, logical block 335
  Buffer I/O error on device sr1, logical block 336
  end_request: I/O error, dev sr1, sector 12455420
  end_request: I/O error, dev sr1, sector 227868
  end_request: I/O error, dev sr1, sector 8511836
  end_request: I/O error, dev sr1, sector 1308
  __ratelimit: 114 callbacks suppressed


Sorry again about the confusion.

-- 
IO errors when inserting a disc
https://bugs.launchpad.net/bugs/304954
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