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Re: One for DVD+RW/hcn.html

>> Could you test -ssa=none and submit
>> format descriptors for reference?

Conversation went like this:

you: none of my units return Format Type 1 [not even] for *DVD-RAM*
me: I get varying number of such descriptors per particular disc, e.g.
if I apply dvd+rw-format -ssa=none to *DVD-RAM* I get 8 of them. could
you test this in your unit too? i.e. with *DVD-RAM* :-)

> $ dvd+rw-format -ssa=none /dev/sr1
> * BD/DVD±RW/-RAM format utility by <appro@fy.chalmers.se>, version 7.1.
> * 24.2GB BD media detected.
> * formatting 0.0-

> This alters the address mapping obviously.
> The first 131080 blocks are filled with "Z"
> now. Then comes the ISO image which was
> stored on that media. Visible by
>   dd if=/dev/sr1 bs=2048 skip=131080 | od -c | less
> but unmountable because all the LBAs are
> shifted now.

Right. This is because you took away inner spare area and it became
visible as user space. BD inner area is also minimum and once it's
allocated increasing spare area is accounted to outer edge of the BD.
Meaning that as long as recording is short enough there is formal
possibility to extend spare area without zapping data. But once again, I
wanted to see if/that your unit offers Format Type 1 descriptors for
*DVD-RAM*... Cheers. A.

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