Had a similar problem. DVD burning was extremely slow (below 1x speed), took forever to write DVDs.
sniffing around the web and looking at my system I found the following in dmesg: [ 31.521623] ata1.00: ATA-7: FUJITSU MHV2060AT PL, 000000A0, max UDMA/100 [ 31.521627] ata1.00: 117210240 sectors, multi 16: LBA [ 31.537571] ata1.00: configured for UDMA/100 [ 31.857052] ata2.00: ATAPI: TSSTcorpCD/DVDW TS-L632B, LG34, max UDMA/33 [ 31.857068] ata2.00: simplex DMA is claimed by other device, disabling DMA [ 32.028830] ata2.00: configured for PIO4 I found this: http://ubuntuforums.org/showthread.php?t=760121#2 I did the suggested solution: - in /etc/initramfs-tools/modules , added pata_atiixp blacklist ata_generic - then: sudo update-initramfs -u results are amazing... from the ridiculous speed of 1x (and below) I got a burning speeds of up to 6x dmesg no shows [ 28.016707] ata1.00: ATA-7: FUJITSU MHV2060AT PL, 000000A0, max UDMA/100 [ 28.016710] ata1.00: 117210240 sectors, multi 16: LBA [ 28.032662] ata1.00: configured for UDMA/100 [ 28.352140] ata2.00: ATAPI: TSSTcorpCD/DVDW TS-L632B, LG34, max UDMA/33 [ 28.523889] ata2.00: configured for UDMA/33 hope this will be helpful for others -- Brasero, GNOME's burn:/// and K3b slow dvd burn speed https://bugs.launchpad.net/bugs/31709 You received this bug notification because you are a member of Ubuntu Bugs, which is a direct subscriber. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs