Problem with /dev/scd[0-9] permissions

[m.knaepper@it-knaepper.de]

Hi all,
I have a problem with permissions to my cdrom devices. If I try to access 
them as an user just to playback audio-cds or mounting data-contents there 
is no problem at all.

Even when I try to use them for ripping my cds to convert them to mp3 or 
burning purposes (KAudioCreator or K3b) I get an error:

Access denied.

This error accures only in this circumstances. Here my Configuration

Debian Sarge
kernel 2.6.8.1-686-smp


Devices
Host: scsi1 Channel: 00 Id: 02 Lun: 00
  Vendor: PIONEER  Model: DVD-ROM DVD-305  Rev: 1.03
  Type:   CD-ROM                           ANSI SCSI revision: 02
Host: scsi2 Channel: 00 Id: 02 Lun: 00
  Vendor: PLEXTOR  Model: CD-R   PX-W1210S Rev: 1.06
  Type:   CD-ROM                           ANSI SCSI revision: 02
Host: scsi3 Channel: 00 Id: 00 Lun: 00
  Vendor: PLEXTOR  Model: DVDR   PX-708A   Rev: 1.08
  Type:   CD-ROM                           ANSI SCSI revision: 02

Permissions to these devices:
Permissions are set by /etc/init.d/udev by executing /etc/udev/udev.rules.

# permissions for SCSI CD devices
BUS="scsi", KERNEL="sr[0-9]*", SYSFS{type}="5", NAME="scd%n", MODE="0776", 
GROUP
="cdrom", SYMLINK="sr%n"
BUS="scsi", KERNEL="sg[0-9]*", SYSFS{type}="5", NAME="%k", MODE="0776", 
GROUP="c
drom"

Permissions are set correctly.

Anyone any ideas?