Posted by Bob on 11/14/87 11:26

On Sun, 11 Sep 2005 17:44:19 -0700, "Norman Hart"
<news@normanhart.co.uk> wrote:

>Hi, can anyone help me?
>
>I cannot burn large amounts of files onto my DVD media (boxed & branded
>Philips DVD+R) using my LiteOn SOHW-1693S DVD burner (firmware upgraded from
>KS04 to KS0A). Is the LiteOn fussy about DVD media?
>
>I'm currently using Nero under Windows XP Prof SP1 - do I need SP2? Nero
>tells me of a "failure in communication" after about 15 - 25% progress.
>
>My PC is a new build and has 2 gig of RAM - I assume all is well there?
>
>Any thoughts from anyone would be appreciated!
>
>Movies and small burns are fine.
>
>Many thanks

Slow down the burn speed. Burning a DVD at "constant angular velocity"
(CAV) means that the linear speed of the disc surface past the laser
increases with distance from the center of rotation.

Single layer DVDs burn from the center out to the edge, so as time
goes along, the laser has moved to a region of higher linear speed,
and apparently that is too high a speed for the drive-media
combination. That's why you get by initially but it fails later. Drop
down by a factor of two in burn speed and see what happens.

We had a Sony/LiteOn that would not burn worth a damn at the stated
speed of cheap DVDs (MemorWrecks ProdataF01). But we could get by with
only 1 coaster in 10 if we burned at half speed. That drive went back
to the vendor when we discovered it was not supported by either Sony
or LiteOn - neither wanted to be stuck fixing a piece of crap. We both
got NEC 3540s and they can burn any approved disc at full rated speed.
Only $40 at Newegg or Directron.




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--Thomas Sowell

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