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Posted by root on 04/01/07 21:00
Eamon Skelton <Xnospam@oceanfree.net> wrote:
Again I thank you for your ideas. I think we are beating a dead
horse here. I just bought (and subsequently returned to Best Buy)
the LG GSA H42LI drive. It too says it can read RAM at 12x. It
read at 3.5Mb/s which is 3x. It is 50% faster than the Pioneer.
> I wonder why you are having problems writing at high speeds. Can you
> read DVD to HD at full speed?
>
I have no problems reading from DVD-R with the Pioneer or any of the
other drives. That isn't my focus, however.
> I think you have a fairly new machine with Core2 duo and SATA. What
> mainboard does it use? Are there any known issues with the SATA chip
> and Linux? Are you using a recent kernel?
My motherboard is the EVGA 680i SLI with an NVIDIA chip set. The problem
isn't in my machine as the differences among the various brands of
drive evidence.
>
> If all else fails, you might have to take a walk on the dark side
> and try it on Windows before you write it off as a dud. A CD-DVD Speed
> burn test might reveal the cause of the problem.
>
I can't bring myself to work with Windows.
>
> I use Panasonic 3x DVD-RAM with my Liteon and LG drives. I get
> write speeds around 1.5x and read speeds around 3x despite the
> fact that the Liteon is rated for 12x.
>
There you go, you are seeing exactly what I see. Only the BenQ drive
lives up to what is written on the box. The BenQ does read at 5x.
I got the BenQ on sale at Staples over a year ago for $20. The
model is no longer available.
> I'm running out of ideas! Are you using an 80 wire IDE cable? Try using
> a different one, just in case.
I use the same cable as with the BenQ. You can't get udma4 unless you
have a 80 wire cable.
>
> What burning software do you use? I use growisofs from the
> console or with K3B as a graphical front-end.
>
Burning isn't the problem, but I use cdrecord for -R disks
and growisofs for +R. I don't write to RAM with the computer.
> Are you using the ATAPI driver or ide-scsi?
>
I use the IDE/ATAPI driver in kernel 2.6.20.
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