Hi, this time the layer break position was not set by growisofs. Now i wonder what is the difference between the commands sent by growisofs and libburn underneath xorriso.
Looking at the source code of growisofs it seems that no command RESERVE TRACK is sent for DVD+R DL. libburn sends it if it decided for DAO/SAO-like writing for which it announces the amount of data in advance. You could risk a medium and run xorrecord with explicit option -tao in order to see whether it fails too: xorrecord dev=/dev/sr0 -v -tao -pad 2017.iso (If no -tao or -dao is given, i expect libburn to decide for -dao.) > :-[ WRITE@LBA=0h failed with SK=5h/ASC=21h/ACQ=04h]: Invalid argument It is not normal that a blank medium cannot take a first WRITE command to block 0 and carrying 16 blocks. The error code stems from the drive. But i cannot imagine what growisofs could have done wrong to get this reply to its command. > [5509731.308149] ata1.00: status: { DRDY } > [5509736.352258] ata1: link is slow to respond, please be patient (ready=0) > [5509741.332040] ata1: device not ready (errno=-16), forcing hardreset Some quite short timeout period is to see here. After only 5 seconds the first complaint appears. 5 seconds later, the device gets reset. It is not clear to me whether the error was perceived by growisofs before or after that reset. If no deterministic explanation can be found, then you have to expect that xorrecord could fail too with that drive at some random occasion. Have a nice day :) Thomas -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1757030 Title: Lite-On DS8A1H Slimline fails to record dual layer DVD+R To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/dvd+rw-tools/+bug/1757030/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs