Hi, > I had tried growisofs first, before using wodim, and end up with an > erorr message that leads me to think growisofs cannot handle DVD+R the > same way it cannot handle DVD-R[1].
I can confirm that a few years ago growisofs wrote DVD+R and DVD+R DL. But DVD+R DL seems to be a problematic medium type for many drives, especially after they had a few months of normal work load. > https://bugs.launchpad.net/ubuntu/+source/dvd+rw-tools/+bug/311297/comments/7 I never tried DVD-R DL myself because they are expensive and single-session only. Nevertheless a user of cdrskin recently made a successful test. The drive closed the media automatically after the first session. > Sense Bytes: 72 0B 00 00 00 00 00 0E 09 0C 00 00 00 00 00 00 > Sense Key: 0x0 No Additional Sense, Segment 11 > Sense Code: 0x00 Qual 0x00 (no additional sense information) Fru 0x0 Uh oh. That's a (S)ATA bus problem. wodim does not expect sense byte format 72 and thus interprets the further bytes wrongly. We had the same here with cdrecord end of July: http://www.mail-archive.com/cdwrite@other.debian.org/msg13337.html > > Sense Bytes: 72 0B 00 00 00 00 00 0E 09 0C 00 00 00 03 00 00 (Google yields 3600 results for "Sense Bytes: 72".) So i can recycle my diagnosis from then: SPC-3, 4.5 Sense Data, tells that the "Sense Bytes" actually mean error code Key= B , ASC= 0 , ASCQ= 0 I do not find this combination in MMC-5 or SPC-3. But Key 0xB means according to SPC-3, table 27: "ABORTED COMMAND: Indicates that the device server aborted the command. The application client may be able to recover by trying the command again." According to SPC-3 tables 13, 14, and 15, "09 0C" announces an "ATA Return" of 12 bytes to be explained in specification SAT = "SCSI / ATA Translation [ISO/IEC 14776-921] [T10/1711-D]". I don't have this document. 6 of the bytes got not printed, anyway. By principle the burn program should not be able to confuse the ATA bus. It actually talks to an SCSI-level driver which has to manage (S)ATA on its own. > Reading so much about growisofs' incompatibility with DVD-R DL and > wodim's incompatibility with DVD+R DL I cannot help wonder why the two > tools don't says so in their output or mention them in their manual Both expect to be able. wodim out of much optimism, growisofs out of aptivity. (I am not its programmer, but i have learned a lot from it.) growisofs generally is ok with DVD ... if system. drive and media are ok. There is one known problem with BD-R. wodim is not the best choice for DVD in general, because its DVD code is quite old and nobody is willing to invest time into beefing it up. At least above problem is in its root caused by hardware or operating system. From googling i get the impression that the problem often pops up after system upgrades. But there are lots of misperceptions around burn problems. It might be that the burn programs indirectly contribute to the problem by gestures which confuse the drive firmware which would then confuse the drive controller or the operating system that waits for reply from the drive. ---------------------------------------------------------------------- If you want to go on with investigating the problem together with me, then be invited to try it with my software http://scdbackup.sourceforge.net/cdrskin-0.8.8.pl00.tar.gz which is a cdrecord emulator and able to perform most options of wodim. Its entrails are based on libburn which is independent of sources of cdrecord or growisofs. We would first try whether it brings better results (which i rather doubt) and could then study the SCSI commands in detail (by option -V) if it fails. If it really succeeds we could compare its SCSI commands with those of wodim in order to make a theory why that one fails. One difference of libburn and growisofs with DVD+R DL is the layer break command. growisofs sends it. I let the drive decide on its own when to end layer 1. A quite interesting experiment would be to boot a Linux Live-CD which contains the burn programs in question. Like: http://rip.7bf.de/current/RIPLinux-11.0-non-X.iso By this (sparse) system you could cross-check your usual kernel. Whatever, expect quite a waste of test media. There is no dummy mode with DVD+R. Have a nice day :) Thomas -- To UNSUBSCRIBE, email to cdwrite-requ...@other.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@other.debian.org Archive: http://lists.debian.org/94631621429...@192.168.2.69