Hi, piorunz wrote: > Today, kernel 5.10, Debian 11 Bullseye, and problem still exists :D > > $ lsblk -b -o VENDOR,MODEL,SIZE /dev/sr0 > VENDOR MODEL SIZE > hp hp_DVDRW_GUE1N 1073741312
Now that's a strange size: 1 GiB - 512 bytes. The readable data capacity of an optical drive should be divisible by 2048, but the reported size is not. (I remember to have read of very old CD drives with a hardware switch which changes the data block size from 2048 to 512 bytes.) What do you get from the lsblk command when a readable DVD is inserted and later when the medium is out of the drive again ? Have a nice day :) Thomas
