cd/dvd not recognized

Binary package hint: udev

Cd/dvd is not recognized in Lucid and Maverick. Only when the cd/dvd is in the tray at startup it works as expected.

ProblemType: Bug
DistroRelease: Ubuntu 10.10
Package: udev 162-2
ProcVersionSignature: Ubuntu 2.6.35-22.34-generic 2.6.35.4
Uname: Linux 2.6.35-22-generic i686
NonfreeKernelModules: nvidia
Architecture: i386
Date: Thu Oct 14 10:05:05 2010
InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Release i386 (20091028.5)
MachineType: ECS P43T-A2
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.35-22-generic root=UUID=6c815c50-fc95-4d3d-bc32-dc7fdc2d11fa ro quiet splash noapic
ProcEnviron:
 LANG=en_US.utf8
 SHELL=/bin/bash
SourcePackage: udev
dmi.bios.date: 06/19/2008
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 080015
dmi.board.asset.tag: To Be Filled By O.E.M.
dmi.board.name: P43T-A2
dmi.board.vendor: ECS
dmi.board.version: 1.0
dmi.chassis.asset.tag: To Be Filled By O.E.M.
dmi.chassis.type: 3
dmi.chassis.vendor: ECS
dmi.chassis.version: 1.0
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr080015:bd06/19/2008:svnECS:pnP43T-A2:pvr1.0:rvnECS:rnP43T-A2:rvr1.0:cvnECS:ct3:cvr1.0:
dmi.product.name: P43T-A2
dmi.product.version: 1.0
dmi.sys.vendor: ECS