Hellow everybody:

I have this problem in K3B :cdrecord does not have permissions to open the device, in preferences, it does recognize the cd unit, but I can not record anything. any solution?

Thanks.

You need to add your user to cdrom group. Read about groups in Linux.

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id user_name

will show you to what group you belong.

Do a google search for mounting cdrom, this topic may be useful:
https://ubuntuforums.org/showthread.php?t=283131

I added mount point for cdrom in my fstab

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#cdwriter
/dev/cdrom /media/cdrom udf,iso9660 rw,noauto,user,exec,utf8 0 0

/media/cdrom is my mount point. If doesn't exist I create cdrom folder in media folder and check permissions.

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ls -l /media/
drwxr-xr-x   2 root    root     4096 gru  9  2014 cdrom

And than I add it to fstab. If you don't add it to fstab probably you will need to mount it every time manually
https://askubuntu.com/questions/589854/ ... g-cd-drive

My settings
https://imgur.com/a/aCYn782

Hi,
First I run this commands in order to change the owner of the optical disk
jochoa@jochoapc:~$ ls -ls /dev/sr0
0 brw-rw----+ 1 root cdrom 11, 0 sep 27 12:04 /dev/sr0
jochoa@jochoapc:~$ sudo chown jochoa:cdrom /dev/sr0
jochoa@jochoapc:~$ ls -ls /dev/sr0
0 brw-rw----+ 1 jochoa cdrom 11, 0 sep 27 12:04 /dev/sr0

Then I installed brasero from discover and I could write the file in the CD
Obviously I remove k3b forever.
Regards,

Found :
do
sudo chmod 4711 /usr/bin/wodim
sudo chmod 4711 /usr/bin/cdrdao
And k3b is OK

Confirmed: the solution posted by srgmro33 is correct. No more authorization problems with k3b.
Thank You

Worked for me!! Thanks