[Bug 31709] Re: Brasero, GNOME's burn:/// and K3b slow dvd burn speed

[italomaia]

K3B as well as growisofs show very poor burning speed here.

~> dmesg | grep DMA
[    0.000000]   DMA      0x00000000 -> 0x00001000
[    0.000000]   DMA zone: 32 pages used for memmap
[    0.000000]   DMA zone: 0 pages reserved
[    0.000000]   DMA zone: 3939 pages, LIFO batch:0
[    1.991904] ata1: SATA max UDMA/133 cmd 0x30b0 ctl 0x30a4 bmdma 0x3090 irq 23
[    1.991907] ata2: SATA max UDMA/133 cmd 0x30a8 ctl 0x30a0 bmdma 0x3098 irq 23
[    2.876235] ata1.00: ATA-7: Hitachi HTS541616J9SA00, SB4OC7BP, max UDMA/100
[    2.892248] ata1.00: configured for UDMA/100
[    4.061904] ata3: PATA max UDMA/133 cmd 0x1f0 ctl 0x3f6 bmdma 0x3080 irq 14
[    4.061907] ata4: PATA max UDMA/133 cmd 0x170 ctl 0x376 bmdma 0x3088 irq 15
[    4.388465] ata4.00: ATAPI: MATSHITADVD-RAM UJ-851S, 1.50, max MWDMA2

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Brasero, GNOME's burn:/// and K3b slow dvd burn speed
https://bugs.launchpad.net/bugs/31709
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