mounting audio cd

Hi all,

I have tried to mount an audio cd with the command:

doas mount -t cd9660 /dev/cd0c /cdrom
mount_cd9660: /dev/cd0c on /cdrom: Invalid argument

doas dmesg | grep cd shows me:

cd0 at scsibus1 targ 0 lun 0: <HL-DT-ST, DVDRAM GH24NSD5, LV00> removable
cd0(ahci0:0:0): Check Condition (error 0x70) on opcode 0x0
cd0 at scsibus1 targ 0 lun 0: <HL-DT-ST, DVDRAM GH24NSD5, LV00> removable
cd0(ahci0:0:0): Check Condition (error 0x70) on opcode 0x0
cd0 at scsibus1 targ 0 lun 0: <HL-DT-ST, DVDRAM GH24NSD5, LV00> removable

using 7.5 GENERIC.MP#82 amd64

Two weeks ago I could mount it with success.

Forgive me, I'm a rookie.
Does anyone have an idea?

Manfred