[filmscanners] Re: Bad News on CD longevity

["" <rkoziol3@comcast.net>]

On 27 Aug 2003 at 17:40, Arthur Entlich wrote:

> Did they test the 2001 product and current product using the same write
> speed and same burner?

That's not always a fair test.  New CD-R blanks, rated for higher
speed, have (may have, since nobody knows) different properties.

Each burner (brand and vintage) has it's own magical way of
determining a laser setting for each type of CD-R chemistry.  Some
burning software does "laser calibration", whatever it means, other
does not.  Or at least it does not tell you.

You quickly approach a "can of worms" scenario.

> If one has a lot of several year old blank CD-R media, will it "keep"
> unrecorded better than the new stuff being sold?

All I have read on this subject is that unrecorded media has a shelf
life of about 2 years.  Recorded CD-R are much more stable.

> Based upon this new info, are CD-RW still considered less reliable than
> current CD-R product?

I have never heard (except maybe here) that CD-RW media is more
stable than CD-R.  From personal experience, I have lost data after
only a month on CD-RW, but never on CD-R.  Not a real test, just a
real life experience :-)

Regards,

Rich

------- End of forwarded message -------

Regards,

Rich


Regards,

Rich

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