Re: [ARSCLIST] Preservation media WAS: Cataloguing still :-)

[David Lennick <dlennick@xxxxxxxxxxxx>]

Lou Judson wrote:

> 1983: CDs (compact discs, not certificates of deposit) go on sale.
> from <http://www.mediahistory.umn.edu/time/1980s.html>
> and see <http://www.oneoffcd.com/info/historycd.cfm>
>
> and google for more.
>
> In junior high I did a long report on how records were made - the
> technology and the history. I try to keep up still. There are lots of
> stories, such as the president of Sony wanted CDs to be big enough for
> the longest piece of music - Beethoven's Ninth - which is how they got
> to be 74 minutes at first. I never understood why thay didn't make them
> as long as cassette tapes, 90 minutes, which would have made so much
> more sense!
>
> <L>

And now, finally, I see 90-minute blank CDs for sale..which they advise are
definitely NOT to be used in real time recorders. Dammit!

dl (who was sent dozens of 90-minute DATs to transfer to CD last month)

>
>
> Lou Judson ? Intuitive Audio
> 415-883-2689
>
> On Sep 5, 2006, at 1:08 PM, Roger and Allison Kulp wrote:
>
> > Japan.Sony inroduced them,like 1981 or so.
> > Roger Kulp
> >
> > steven c <stevenc@xxxxxxxxxxxxxx> wrote: ----- Original Message -----
> > From: "Don Cox"
> >> How did engineers make the first CDs, when hard drives were not big
> >> enough to hold 600 Megs of data?
> >>
> > Actually, I'm not sure...but one way it COULD have been done is with
> > magnetic tape storage, since that was used on mainframe computers at
> > least in the early seventies, if not before. When I was working my
> > way through university as a security guard for State Farm ('74-'76)
> > I recall seeing carts loaded with HUGE reels of data tape...and I
> > have no idea what the length v. data capacity algorithm might have
> > been (or how many reels of tape, if more than one, would be needed
> > to store the digital capacity of a CD...?)
> >
> > In fact, where WERE CD's introduced commercially?
> >
> > Steven C. Barr
> >
> >
> >
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