Re: Problems burning DVD

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On Mon, 2005-02-28 at 21:43 +0100, Bernd Radinger wrote:
> On Mon, 28 Feb 2005 00:12:19 +0100, Gérard Milmeister <gemi@xxxxxxxxxx> wrote:
> > Hi,
> > 
> > I just burned a couple of AVI-files to a DVD. This seemed to work fine.
> > I mounted the DVD afterwards, and played an AVI-file with mplayer. While
> > the video was ok, the sounds was completely noise.
Ok, here are my findings:
I have a Plextor PX-716A.
I upgraded to firmware version 1.04 using the pxupdate tool. Then I
noticed that writes resulted in random bytes being changed. I guessed
that the new firmware was responsible for this. Then I tried to revert
back to 1.03, which didn't work. Finally I figured out, that maybe I
switch off DMA with hdparm and, lo, I could downgrade the firmware. I
again wrote a DVD with DMA on, the same errors occurred, but with DMA
everything seems work correctly. Now, I think to remember that
previously I could burn without problems with DMA on. Any ideas?
-- 
Gérard Milmeister
Langackerstrasse 49
CH-8057 Zürich


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