Comment 3 for bug 577465

Same problem here with both CD/DVD drives:

sr0: scsi3-mmc drive: 48x/48x cd/rw xa/form2 cdda tray
sr1: scsi3-mmc drive: 94x/94x writer dvd-ram cd/rw xa/form2 cdda tray

[ 14.791318] end_request: I/O error, dev sr1, sector 0
[ 14.792422] sr 0:0:1:0: [sr1] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[ 14.792426] sr 0:0:1:0: [sr1] Sense Key : Illegal Request [current]
[ 14.792429] sr 0:0:1:0: [sr1] Add. Sense: Logical block address out of range
[ 14.792433] sr 0:0:1:0: [sr1] CDB: Read(10): 28 00 00 00 00 00 00 00 01 0

It happens on a fresh, new installation of Kubuntu 10.04 amd64. All currently available updates are installed.
The error messages appears 1 or 2 minutes after a fresh boot. After many of this error messages (dmesg) both drives dissappears from the system. K3b cannot find any optical device anymore.

If I start burning an CD ISO image immidiately after booting, this job might be finished correctly. If start burning to late ... burning fails because the DVD burner got lost during burning.

I installed 10.04 on a new, empty hard disc. The previous Ubuntu installation on another disc had no problems, everything was fine including CD read and DVD burning. Because the previous system was an rather old system with a few dist-upgrades over the years I deceided to do a frest installation to get all new features.

Hardware:
Asus mainboard P5N32 E with Nvidia chipset (C55+MCP55P; a.k.a. nForce®650i SLI & nForce®570 SLI)
Intel CPU Q6600
8 GB RAM

Installed kernel: 2.6.32-22-generic