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[Tanner Lovelace <lovelace AT wayfarer.org>]

On Mon, 2002-08-05 at 16:53, Gina Norman wrote:

> (I think the bit that's still got me a little confused is that it's
> obvious that you can copy one CD in *analog* format onto one cassette,
> bypassing the computer entirely.  That being said, it *must* be the case
> [I think?] that there's _more_ info on a music CD than on a music
> cassette... or is digital that much "less efficient" than analog?  Right?
> Otherwise, how can it be the case that you can put a whole friggin
> encyclopedia [or at least a few volumes] on a CD-R -- you clearly couldn't
> have put that on a 90-min. cassette [could you?].  So -- ignoring music
> altogether -- how many K of data can you put on a 90 min. cassette tape?)

How CDs compare to audio tapes is an easy question.  Music
CDs were spec'd out to fit 74 minutes of music on them.  74 < 90,
so that's why cassettes will hold more. :-)

Tanner
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Tanner Lovelace | lovelace AT wayfarer.org | http://wtl.wayfarer.org/
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