On 2014-12-03, Chris Ahlstrom wrote:
JEDIDIAH wrote this copyrighted missive and expects royalties:

On 2014-12-03, Chris Ahlstrom wrote:
Char Jackson wrote this copyrighted missive and expects royalties:

On Tue, 2 Dec 2014 15:19:56 -0500, flatfish+++
wrote:

Bit-Rot is a big thing with CD these days. People go back to that CD
they bought in the 1980s and find it doesn't work anymore.
Even worse for DVD.

If bit rot is possible with pressed CD/DVDs, it's news to me. Plenty of
other things can go wrong, especially if proper handling and storage aren't
observed, but I believe bit rot is reserved for the writeable variety of
optical discs.

At least with vinyl or tape you can work around it.
With a CD if it can't read the TOC, you are pretty much dead.

Don't let the kids handle it and don't store it in direct sunlight or in the
car where temps hit 140+ and you should be fine. In the life of a pressed CD
or DVD, the 1980's weren't that long ago.

http://www.clir.org/pubs/reports/pub121/sec4.html

Among the manufacturers that have done testing, there is consensus that,
under recommended storage conditions, CD-R, DVD-R, and DVD+R discs
should have a life expectancy of 100 to 200 years or more; CD-RW,
DVD-RW, DVD+RW, and DVD-RAM discs should have a life expectancy of 25
years or more. Little information is available for CD-ROM and DVD-ROM
discs (including audio and video), resulting in an increased level of
uncertainty for their life expectancy. Expectations vary from 20 to 100
years for these discs.

Apparently it varies by manufacturer and apparently some were very bad.

Yet another reason to rip everything and back up stuff as much as you can
and do as much as you can to avoid bit rot on your ripped copies.

I have this USB stick I use in my car; it often sits for hours in the hot
sun. So now I sometimes get "Bad Media" or sound glitches, when I know the
file was initially good.


I dunno. I am more inclined to blame the head unit for glitches than the media.

For every technology you can name, there are people that have their own horror stories.

--

Nevermind the pirates. Sony needs to worry about it's own back catalog. |||
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