[Pkg-opt-media-team] Bug#615978: Pseudo OverWrite handling is inconvenient ?

[Rogério Brito]

Hi there, Michael.

On Mar 07 2011, michael wrote:
> Hi there,
> 
>   the Pseudo Over Write (pow) BD-R feature is causing this behaviour.
> 
> The drive is asked, if it is capable to use POW. The nwa (Next
> Writeable Address) will not be used to calculate media capacity if
> the drive reports positive.

Thank you very much for taking the time to debug this. I was thinking that
it could be some endianness problem, but you nailed it before me.

>   When the Remaining Blocks for track are calculated, the POW blocks
> won't be counted as writeable, so the remaining blocks are counted
> correctly.

As I don't have a Blu-ray device, could you, for documentation purposes,
print the values that you get with that specific image of the variables:

* capacity
* outoff
* tracksize

just before the check if overburn is enabled, in growisofs.c, function
builtin_dd?

>   No strings attached ?

The patch seems simple, but, perhaps, we shoud put a switch to control if we
should ignore the pseudo overwrite if we are writing the first session,
starting from a fresh medium?

Can you share your experiences here?


Thanks,

-- 
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