I'm seeing the same thing on a fully updated karmic system.  Again this
is an external USB CD/DVD drive.  Data CDs and DVDs work fine, but audio
CDs fail.

lshw -C disk
  *-cdrom
       description: DVD reader
       product: CDRWDVD TSL462D
       vendor: TSSTcorp
       physical id: 0.0.0
       bus info: s...@4:0.0.0
       logical name: /dev/cdrom
       logical name: /dev/cdrw
       logical name: /dev/dvd
       logical name: /dev/scd0
       logical name: /dev/sr0
       version: DE09
       capabilities: removable audio cd-r cd-rw dvd
       configuration: status=open

/var/log/messages after attaching disk and inserting disk:
 kernel: [12374.163544] usb 1-2: USB disconnect, address 4
kernel: [12383.672097] usb 1-2: new high speed USB device using ehci_hcd and 
address 5
kernel: [12383.809889] usb 1-2: configuration #1 chosen from 1 choice
kernel: [12383.823356] scsi4 : SCSI emulation for USB Mass Storage devices
kernel: [12388.834428] scsi 4:0:0:0: CD-ROM            TSSTcorp CDRWDVD TSL462D 
 DE09 PQ: 0 ANSI: 0
kernel: [12388.845169] sr0: scsi3-mmc drive: 24x/24x writer cd/rw xa/form2 cdda 
tray
kernel: [12388.845802] sr 4:0:0:0: Attached scsi generic sg1 type 5
kernel: [12412.030368] sr 4:0:0:0: [sr0] Result: hostbyte=DID_OK 
driverbyte=DRIVER_SENSE
kernel: [12412.030381] sr 4:0:0:0: [sr0] Sense Key : Illegal Request [current] 
kernel: [12412.030391] Info fld=0x0
kernel: [12412.030395] sr 4:0:0:0: [sr0] Add. Sense: Illegal mode for this track
kernel: [12412.030406] sr 4:0:0:0: [sr0] CDB: Read(10): 28 00 00 00 00 00 00 00 
02 00
kernel: [12412.030433] __ratelimit: 746 callbacks suppressed
kernel: [12412.032772] sr 4:0:0:0: [sr0] Result: hostbyte=DID_OK 
driverbyte=DRIVER_SENSE
kernel: [12412.032788] sr 4:0:0:0: [sr0] Sense Key : Illegal Request [current] 
kernel: [12412.032801] Info fld=0x0

With the last batch of messages repeating hundreds of times until the
disk is ejected

-- 
[CDROM] Audio CD not recognized 
https://bugs.launchpad.net/bugs/498666
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