On Sun, 23 Jan 2005, William Chops Westfield wrote:

> On Jan 23, 2005, at 4:53 PM, Dave VanHorn wrote:
>
>>> Weird.. I still have the first CD I ever bought, back in '85 or so
>>> > Still looks mint, and of course plays just fine.
>>> 
> Note that commercial CDs are created from a entirely different process
> than CD-R and CD-RW technology.  I don't THINK that anyone is seriously
> questioning the viability of commercial CDs  (although in the music
> area; I fear I have a significant quantity of music CDs published by
> small producers that are on CD-R media; I used to think that was a pretty
> good thing...

FYI I have had exactly two failed cds from a mix of about 200 cds of 
which 3/4 are cdrs and the remainder were purchased pressed cds. The 
burned cds all contain data only, the purchased ones data and music. 
Both failures were by exfoliation or corrosion of the metal (aluminium) 
layer in music cds, which started showing transparent holes in the 
aluminium layer near the cneter! All cds are stored in jewel boxes in 
the same place (roughly). The cds were good for a few years and 'died' 
after about 5 years of storage, with very little use. No such failure 
occured with any burned cdrs. I never buy 'best deal' or 'reduced' 
stacks of media, however. The failed cds were reputable brand and 
purchased at full price through a well-known music chain store.

Peter
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