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- From: myers@hpfcso.FC.HP.COM (Bob Myers)
- Date: Wed, 18 Nov 1992 19:27:48 GMT
- Subject: Re: INFO WANTED: CD's and the degeneration thereof.
- Message-ID: <7490253@hpfcso.FC.HP.COM>
- Organization: Hewlett-Packard, Fort Collins, CO, USA
- Path: sparky!uunet!usc!zaphod.mps.ohio-state.edu!sdd.hp.com!hpscit.sc.hp.com!scd.hp.com!hpscdm!hplextra!hpfcso!myers
- Newsgroups: rec.audio
- References: <9220410.52@sunvax.sun.ac.za>
- Lines: 23
-
- > Would some of you Audio Wizards with knowledge regarding this please help me
- > out here. I remember reading an article (Popualar Science, I *think*) quite
- > a while back regarding CD's and the degeneration of them when not played for
- > long periods of time. If I remember correctly, it has something to do with
- > the type of plastic used in CD's. Also apparently this effect can be negated
- > by playing your CD's occasionaly. The type of laser used apparently also
- > makes a difference. (Something to do with the light frequency.)
- > I've got a friend who's quite an audio fanatic and he wants to know if this
- > is true/false etc. Any and all info regarding this will be most appreciated.
-
- As stated above, this is false. There was a concern, especially with the
- older CDs, that there would be some degradation of the disc due to delamination
- of the metal layer from the plastic (which makes up the bulk of the disc).
- As far as I know, even in these cases the playing of the disc had no
- effect on this problem either way - it simply happened as the disc aged,
- played or not. Newer CD production has addressed the problem, which should
- now be much less prevalent.
-
-
-
- Bob Myers KC0EW Hewlett-Packard Co. |Opinions expressed here are not
- User Interface Tech. Div.|those of my employer or any other
- myers@fc.hp.com Fort Collins, Colorado |sentient life-form on this planet.
-