After upgrading devices with inserted cdrom/dvd are not shown anymore on desktop. They are listed in /dev/sr*, but remain inaccessible, even when permissions are set to 0777.
Trying to access them using vlc, or other tools, these exhaust "Could not open device /dev/sr0". It does not mater if these are connected by SCSI, IDE, USB, or FireWire. Since it is possible to operate these devices to some extent as opening them, eject disks, lock doors it might be rights are not set the right way after latest upgrades breaking access, regardless of permission settings.

$ vlc /dev/sr0
VLC media player 3.0.22-rc1 Vetinari (revision 3.0.22-rc1-0-g9e23cc7e00)
[000055d572d017b0] main libvlc: VLC wird mit dem Standard-Interface ausgeführt. Benutzen Sie 'cvlc', um VLC ohne Interface zu verwenden.
[00007f03dc000e20] dvdnav demux error: Could not open /dev/sr0 with libdvdcss.
[00007f03dc000e20] dvdnav demux error: Can't open /dev/sr0 for reading
[00007f03dc000e20] dvdnav demux error: vm: failed to open/read the DVD
[00007f03dc001f90] filesystem stream error: read error: Input/output error
[00007f03dc003210] cache_read stream error: cannot pre fill buffer
[00007f03dc000e20] mjpeg demux error: cannot peek

Same for varieties of other dvd/cdrom-tools: some work started as 'root', some just do not open given devices. But even then: the device seems inoperable.
Booting from a live system it seems to work without flaws -- except libdvdcss2 weren't available.