Re: CD writing in future Linux try #2 [ was: Re: CD writing in future Linux (stirring up a hornets' nest) ]

[Joerg Schilling]

Jan Engelhardt <jengelh@xxxxxxxxxxxxxxx> wrote:

> >Testing could be done the following way:
> >
> >-	insert a blank CD into your writer and do an initial test burn.
> >
> >	sdd -inull bs=2352 of= test.raw count=75x60x74
> >	cdrecord dev=ATA:b,t,0 -audio -sao -v test.raw
> >
> >	Remember the speed that should be > 40x
>
> Does speed==40 also suffice?

NO, speed==40 may be too slow as I cannot grant that it will
always fail with PIO and speed <=40.

In case that the clock rate of your CPU just fits nicely, it
may be that it by accident works.

> How about a DVD at 8x speed? (Even faster than CD at 40x)

This problem is not present with DVDs as they only support
virtual sector size == 2048.

Jörg

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