[LAU] CDRDAO speed, CRC errors, blah

Fons Adriaensen fons at kokkinizita.net
Sat Apr 24 00:07:48 UTC 2010


On Fri, Apr 23, 2010 at 04:09:57PM -0700, Bob van der Poel wrote:

> > OTOH, speed 8 is already quite slow, and it may well be the
> > lowest one supported by your drive (just guessing this).
> 
> Sort of off topic ... but I had some older 2x DVD-RW discs that I
> tried to burn on my current system. No way. I tossed the discs, my
> assumption being that the drive could not go slow enough for the disc.
> If I recall, I tired all the various speed= commands with growisofs,
> cdrdao, etc. They would report back 8 or 4x (don't recall). I find it
> somewhat odd that a drive will not slow down and am wondering if that
> is due to the linux drivers or the actual drives.

It's very probably not a matter of slowing down the rotation
of the disk - it has to work at normal read speeds anyway.

The limiting factor could well be the minimum power at which
the write laser can operate - lower write speed requires less
power.

Ciao,

-- 
FA

O tu, che porte, correndo si ?
E guerra e morte !


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