gnomebaker audio CD copy verrrrry slow

ZIYAD A. M. AL-BATLY zamb at saudi.net.sa
Mon Jul 11 01:10:06 UTC 2005


On Mon, 2005-07-11 at 02:16 +0200, Vincent Trouilliez wrote:
> thanks Ziyad, I never imagined that computers could rip Cd's so fast !
> If I understand you well, it seems that DMA is not quite working out of
> the box then, in Ubuntu. Well, as I said, it more of an academic
> question, as I don't have any CD to rip anymore, and the only DVD I
> have, I rarely watch it.
> I will give ripping another try, in 3 months, when Breezy is released,
> purely out of curiosity.
> 
> --
> Vince
> 
> 
Turning DMA on is very necessarily because it affects the whole system
speed and responsiveness whenever you access the CD not just for CD
ripping, but also watching DVD, running programs from the CD, copying to
the CD, or listening to Audio CD (if using digital interface which I
think "gnome-cd" is using).

So, please make sure your CD-ROM is always DMA enabled.

Setting DMA is usually the responsibility of the system BIOS, however
some BIOS don't turn DMA on for CD-ROM devices (my system is one of
those), so you have to relay on the Operating System to do that.

In Linux, it's the responsibility of "hdparm".  Edit
"/etc/hdparm.conf" (using "sudo gedit /etc/hdparm.conf" for example) and
add:
        /dev/hdc {
                dma = on
        }
and that's all.  (I'm assuming your CD-ROM device is "/dev/hdc" which I
think is correct since you mentioned it in another post.)
Ziyad.






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