[KLUG Members] Re: CD Burning, a Question or Two -- don't use standard MO (CD-RW, DVD-RW/+RW)

[Bryan J. Smith]

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On Fri, 2002-12-20 at 08:45, Bruce Smith wrote:
> Also, are you burning to CDR or CDRW media?  A LOT of older drives=20
> won't read CDRW media. =20

I don't recommend using Magneto Optical (CD-RW, DVD-RW or DVD+RW) media
for anything but "short term" storage.  The error rate is unacceptable
for production archiving let alone even mid-term storage.  Magnetic can
be just as good.

I'd also do a verify after any copies.  Is there an option to some cp
command/equivalent to do this somewhere (I checked both cp and cpio in
"-p" passthru mode, nope)?

The only way to overcome the limitations of MO are to add all kinds of
verification.  That's what PD-CD and its successor DVD-RAM does.  It's
also why DVD-RAM was first DVD rewritable standard (by several years),
it was an archive format, not a consumer format.  This also means
DVD-RAM discs play in very few players (and not because of the
cartridge, you can remove the disc and still use it).

> The system can keep track of your loopback devices for you, so I don't
> specify the loopback device file.

Ah, I didn't know that.  Are most kernels still compiled with max 8
devices?  Or now the full 255 (or more?)?

> And recent Linux distributions can auto-sense the filesystem type, so
> don't bother typing it unless the mount fails.

Correct.  Hence my fstab entry:
   /dev/scd0    /mnt/dvdram     auto     user   0 0


--=20
Bryan J. Smith, E.I. (BSECE)       Contact Info:  http://thebs.org
[ http://thebs.org/files/resume/BryanJonSmith_certifications.pdf ]
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