[Pc_Support] Re: 3MB/s Samba Performance? -- LG GSA-4163 (or 4165)?

[Bryan J. Smith]

On Sun, 2005-09-11 at 01:59 -0400, Jason Boxman wrote:
> Because I just needed something that would read and optionally write DVD-R.  

???  I'm confused.

NEC is clearly a Sony/Philips DVD+RW Consortium member, so the
"laser/firmware base" is DVD+RW and _not_ Pioneer DVD-R.

LG has sided with the DVD Consortium, so their "laser/firmware base" is
Pioneer DVD-R (the Matshushita DVD-RAM support is just a "bonus").

> The DL is a bonus, but the media is probably too expensive for me to care 
> just like the Spring before last when I got my first DVD-R.

And as I said, the LG GSA-4163 does 4xDL DVD+R, and the GSA-4165 adds
4xDL DVD-R.

_All_ GSA-416x (from the 4160 on-ward) _do_ 16x DVD-R.

> It's unlikely I'll ever use DVD-RAM, since I don't even burn backups to DVD-R 
> as it stands.  So, there wasn't much consideration for having support for 
> that.

Forget DVD-RAM, do you understand that DVD+RW "base" drives:

1.  Can_not_ record in Disc-at-Once (DaO) mode
2.  Do _not_ support cdrecord+DVDpatch (byte-by-byte record) at all
3.  Produce less compatible/readable DVD-R than DVD Consortium drives

Lack of #2 used to be a major PITA before kernel 2.6 came out with
direct re-write support.  I.e., Jorg has only added a preliminary hack
that offers a way for programs to send a byte-by-byte record through DVD
+RW firmware -- something it was _never_ designed for.

Direct re-write support is a block operation.  That's fine when you have
DVD-RW, DVD+RW or DVD-RAM.  But it's far less idea for DVD-R.  In fact,
it goes to the heart of the matter why DVD+R is less compatible than
DVD-R.  Which is why DVD+RW drives can't produce as compatible DVD-R
discs as DVD Consortium drives.

-- 
Bryan J. Smith     b.j.smith at ieee.org     http://thebs413.blogspot.com
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