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SubjectRe: PROMBLEM: CD burning at 16x uses excessive CPU, although DMA is enabled
Date
On 9 April 2002 06:32, Anssi Saari wrote:
> On Mon, Apr 08, 2002 at 05:45:29PM -0400, Mark Mielke wrote:
> > The question is, how is CD burning of raw data different from
> > CD burning of ISO images, in respect to Linux drivers for the
> > hardware
>
> As far as I know, when burning an ISO image, the image has 2048 byte
> sectors to which the CD writer adds error correction data so that the
> individual sector becomes 2352 bytes. A raw data image includes 2352 byte
> sectors. The obvious difference would be a higher data rate (2352/2048
> or 1.15x more) from computer to writer.

It means different write command, additional (possibly less carefully
written/tested) driver code etc. You may need to track your problem
up to that driver code.
--
vda
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