I have a Blu-Ray burner and my main use for it these days is an annual backup of my own data to M-Discs (which are marketed to last really long). I’m burning with k3b. I’ve had problems that something stops in the process, failing to backup and apparently ruining the disc in the process (and they are really expensive, so it matters).
I have burned many disks successfully, but I ran into problems last year and today. I have pasted the debug log in here and relevant
dmesg here. Out of this, the line that seems most significant to me is this:
:-[ WRITE@LBA=8ceac0h failed with SK=3h/WRITE ERROR]: Input/output error
[4554733.284132] sr 4:0:0:0: ioctl_internal_command: ILLEGAL REQUEST asc=0x53 ascq=0x2
Any idea what goes wrong here?