Hi, after re-reading this diagnosis of the problem by the author of growisofs http://lists.debian.org/cdwrite/2008/07/msg00092.html i developed a theory. For details see http://lists.alioth.debian.org/pipermail/debburn-devel/2013-June/000924.html
I do not want to use up a blank BD-R for growisofs experiments (selfish as i am). So the open question is whether this tiny patch prevents the inappropriate attempt to execute that CLOSE SESSION command: --- growisofs_mmc_orig.cpp 2013-06-14 19:53:51.000000000 +0200 +++ growisofs_mmc.cpp 2013-06-14 19:55:25.000000000 +0200 @@ -756,6 +756,8 @@ static void bd_r_format (Scsi_Command &c wait_for_unit (cmd); + bdr_plus_pow = 1; + cmd[0] = 0x35; // FLUSH CACHE cmd[9] = 0; cmd.transport(); Maybe some Ubuntu expert can convert the patch into an end-user-ready Ubuntu thingy and maybe some end-user is willing to give it a try when the next BD-R is about to be written. 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/1113679 Title: Close session failed when burning 25gb blu-ray disc To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/dvd+rw-tools/+bug/1113679/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs