[TriLUG] OT: dual-layer blank failure rate
Brian Henning
brian at strutmasters.com
Mon Jul 31 09:26:21 EDT 2006
Hi Gang,
Just wondering if anyone else has seen a depressingly high
failure-rate for blank dual-layer DVDs. For me, it seems like a good
40-50% of my blank discs crap out during burn at the layer switch;
growisofs says ":-( write failed: Input/output error" at 49.6%
completion. (It's so close to 50% is why I suspect something going
wrong at the layer switch).
Or is it something I'm doing wrong? Most often I'm burning single-layer
media, either CD or DVD-RW. Is there something I need to do to tell the
hardware to expect to have to do a layer switch? I sort of expected the
drive to figure that out on its own.
My growisofs command is thus:
growisofs -Z /dev/dvdrw=dual-layer.ext2
where dual-layer.ext2 is a ext2-formatted 8.0GB loopback file I use as a
staging area for creating backups and such. When it doesn't crap out at
49.6%, it works fine, so it makes it difficult to figure out if I'm
doing something wrong.
Cheers,
~Brian
--
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Brian A. Henning
strutmasters.com
336.597.2397x238
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