Re: Burning dual layer Bluray discs

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Hi,

i wrote:
> > Afaik, K3B uses growisofs as burn backend. It formats BD-R media
> > by default,

Richard Shaw wrote:
> I'm assuming it can format on the fly? There was no "formatting" stage. 

It does this automatically before writing begins. BD-R formatting does
not last long. Other than with BD-RE the drive cannot write and checkread
all blocks just for a test.

growisofs_mmc.cpp emits a message in function bd_r_format()
    fprintf (stderr,"%s: pre-formatting blank BD-R for %.1fGB...\n",
                    ioctl_device,(f[0]<<24|f[1]<<16|f[2]<<8|f[3])*2048.0/1e9);

This undocumented growisofs option can suppress BD-R formatting:
  -use-the-force-luke=spare=none


> Have to wait for payday to buy another (which is sad).

And i am too thrifty. Shame on me. My only excuse is the usual reason
that i am an unpaid volunteer. (This saves me from implementing UDF, too.)

I just had a look at the market in germany:
My usual hardware provider wants 37.85 EUR for 5 pieces Verbatim 100 GB,
or 25.63 EUR for 5 x 50 GB. But there is some hope: 25 x 50 GB no-name
for 44.80. 50 x 25 GB single-layer Verbatim are at sale for 26.94.
So double-layer is now just twice as expensive per GB.

Ridiculous: 5 x 100 GB Verbatim M-Disc for 71.70.


Have a nice day :)

Thomas
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