Hi, yes, DVD-R and DVD+RW are treated quite differently by the drives. The former is a sequential multi-session medium, the latter is a random-access read-write medium. Firmware procedures inside the drive differ. The laser used is the same, afaik. But the dye on the media is quite surely not the same. So physical interaction of laser and medium is supposed to differ.
You have to expect that the problems with those DVD-R media are only the beginning of drive deterioration. As for closing the bug: I assume we need a person who holds a rank at Ubuntu for that. Have a nice day :) Thomas -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to dvd+rw-tools in Ubuntu. https://bugs.launchpad.net/bugs/1654778 Title: growisofs: INCOMPATIBLE FORMAT error with DVD-Rs Status in dvd+rw-tools package in Ubuntu: New Bug description: I can't write data files to a DVD-R disk with growisofs: > growisofs -Z /dev/sr0 -r -J /home/XXX/kdenlive/growfs Executing 'genisoimage -r -J /home/XXX/kdenlive/growfs | builtin_dd of=/dev/sr0 obs=32k seek=0' I: -input-charset not specified, using utf-8 (detected in locale settings) 2.07% done, estimate finish Sat Jan 7 10:58:04 2017 4.14% done, estimate finish Sat Jan 7 10:58:04 2017 6.20% done, estimate finish Sat Jan 7 10:58:04 2017 :-[ PERFORM OPC failed with SK=2h/CANNOT WRITE MEDIUM - INCOMPATIBLE FORMAT]: Wrong medium type /dev/sr0: "Current Write Speed" is 4.1x1352KBps. :-[ WRITE@LBA=0h failed with SK=2h/CANNOT WRITE MEDIUM - INCOMPATIBLE FORMAT]: Wrong medium type :-( media is not formatted or unsupported. :-( write failed: Wrong medium type I have tried multiple disks in case it's just bad media, but I get this error every time. The same command works fine in the same burner hardware with DVD+RW media. Lsb_release output: Description: Linux Mint 17.3 Rosa Release: 17.3 Apt-cache output: dvd+rw-tools: Installed: 7.1-10build1 Candidate: 7.1-10build1 Version table: *** 7.1-10build1 0 500 http://archive.ubuntu.com/ubuntu/ trusty/main amd64 Packages 100 /var/lib/dpkg/status The DVD-R media are Maxells, as are the DVD+RWs. Syslog: Jan 7 11:05:09 XXX kernel: [65178.471475] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 Jan 7 11:05:09 XXX kernel: [65178.471478] usb 1-1: Product: DRX-710UL Jan 7 11:05:09 XXX kernel: [65178.471480] usb 1-1: Manufacturer: Sony Jan 7 11:05:09 XXX kernel: [65178.471482] usb 1-1: SerialNumber: DRX-710UL_MP_002DD5E Jan 7 11:05:09 XXX kernel: [65178.471998] usb-storage 1-1:1.0: USB Mass Storage device detected Jan 7 11:05:09 XXX kernel: [65178.472477] scsi host7: usb-storage 1-1:1.0 Jan 7 11:05:09 XXX mtp-probe: checking bus 1, device 14: "/sys/devices/pci0000:00/0000:00:14.0/usb1/1-1" Jan 7 11:05:09 XXX mtp-probe: bus: 1, device: 14 was not an MTP device Jan 7 11:05:10 XXX kernel: [65179.552985] scsi 7:0:0:0: CD-ROM SONY DVD RW DRU-710A BYZ1 PQ: 0 ANSI: 0 Jan 7 11:05:11 XXX kernel: [65180.354149] sr 7:0:0:0: [sr0] scsi3-mmc drive: 48x/48x writer cd/rw xa/form2 cdda tray Jan 7 11:05:11 XXX kernel: [65180.354325] sr 7:0:0:0: Attached scsi CD-ROM sr0 Jan 7 11:05:11 XXX kernel: [65180.354436] sr 7:0:0:0: Attached scsi generic sg1 type 5 "/org/freedesktop/UDisks2/drives/SONY_DVD_RW_DRU_710A_DRX_710UL_MP_002DD5E" has new interfaces: ("org.freedesktop.UDisks2.Drive") "/org/freedesktop/UDisks2/drives/SONY_DVD_RW_DRU_710A_DRX_710UL_MP_002DD5E" has new interfaces: ("org.freedesktop.UDisks2.Drive") "/org/freedesktop/UDisks2/block_devices/sr0" has new interfaces: ("org.freedesktop.UDisks2.Block") "/org/freedesktop/UDisks2/block_devices/sr0" has new interfaces: ("org.freedesktop.UDisks2.Block") MEDIA CHANGED in "/org/freedesktop/UDisks2/block_devices/sr0" ; size is: 2048 MEDIA CHANGED in "/org/freedesktop/UDisks2/block_devices/sr0" ; size is: 2048 Let me know if I can supply any further information. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/dvd+rw-tools/+bug/1654778/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
