cdrw & PIO4
cswiger at mac.com
Sat May 8 20:30:52 PDT 2004
> On Sun, 9 May 2004 3:17 am, w sx wrote:
[ ... ]
> Have a look at man ata. Here is the important part
> ATAPI devices are set to PIO mode by default because severe DMA
> problems are common even if the device capabilities indicate support.
> You can always try to set DMA mode on an ATAPI device using
> atacontrol(8), but be aware that your hardware might not support it
> and can potentially hang the entire system causing data loss.
While this advice was reasonable some years ago-- and to the extent that
broken ATA hardware still exists may still be relevant now-- but please note
that the Original Poster is trying to use a CD/RW burner. :-)
It doesn't matter too much if you happen to read a CD slowly, but one ought to
use DMA rather than PIO when burning CDs or DVDs.
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