Originally Posted by markush
If it doesn't you could uninstall bash-completion (temporarily) in order to verify that it's really the cause for the trouble.
Removing said text in /etc/profile.d/udisks-bash-completion.sh did not help but when I commented out the line in /etc/fstab:
/dev/sr0 /media/cdrecorder iso9660 defaults,noauto 0 0
the trouble was gone. I then restored the line in /etc/fstab to activate /media/cdrecorder, removed the package "bash-completion", rebooted and the trouble is gone. So I'll leave package "bash-completion" out of the OS and see if there are repercussions. Thank you, Markus. Rep added.