Re: More Dual-Layer burning oddities

[CJ Kucera <pez@apocalyptech.com>]

Joerg Schilling wrote:
> Are you talking about DVD+ or DVD-?

I was talking about my DVD+R/DL discs.

> It seems that you confused the cdrecord man page:
> 
> -	Layer jump is not available for DVD+
> -	Layer jump is not yet implemented for DVD- as the drive I owned
> 	did not like it when I tried to implement it.

Here's the relevant bits from my cdrecord manpage on my current version
(Cdrecord-ProDVD-ProBD-Clone 2.01.01a38) - I suppose I should have
mentioned the version to begin with:

>      layerbreak
>	     Switch a drive  with  DVD-R/DL  medium  into  layer  jump
>	     recording  recording  mode  and use automatic layer break
>	     position set up.
>
>      layerbreak=value
>	     Set  up  a  manual  layer  break  value  for DVD-R/DL and
>	     DVD+R/DL.

To me, that implies that layerbreak=value would work for a DVD+R/DL, and
plain "layerbreak" would only work for DVD-R/DL.  I had just been asking
if that was actually the case, or just sort of a typo.

> Please explain your problem!
> Cdrecord does the right thing with DVD+R without the need for a manual
> layer break. A manual layer break is only needed for DVD-Video.

I thought that I had.  DVD+R/DL discs burned without "layerbreak=value"
on my box result in discs which are unreadable past the layer break (at
least, I assume that's where it fails, since it's at just about half the
size of the disc).  Once I threw in a manual layerbreak, the discs that
I burnt worked properly.  I didn't mention this in the original email,
but I haven't yet run any tests on a different batch of discs, to see if
it was just the media requiring that flag for me.

-CJ