System loses /dev/cdrom drive after burning with k3b

[Alvin]

After burning once, the DVD drive can no longer be used by the system.

Steps to reproduce:
- Burn something with k3b (tested with an image)
- When finished, put a CD or DVD in the drive
- You'll not be able to mount the drive, or burn another DVD.

ProblemType: Bug
DistroRelease: Ubuntu 13.10
Package: k3b 2.0.2-6ubuntu1
ProcVersionSignature: Ubuntu 3.11.0-12.19-generic 3.11.3
Uname: Linux 3.11.0-12-generic x86_64
ApportVersion: 2.12.5-0ubuntu2
Architecture: amd64
Date: Wed Oct 16 14:54:37 2013
InstallationDate: Installed on 2013-05-22 (147 days ago)
InstallationMedia: Kubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424)
MarkForUpload: True
SourcePackage: k3b
UpgradeStatus: Upgraded to saucy on 2013-10-02 (14 days ago)