Path: utzoo!attcan!uunet!mcsun!ukc!slxsys!tsa!domo
From: domo@tsa.co.uk (Dominic Dunlop)
Newsgroups: comp.misc
Subject: Re: Exabyte (8mm) versus DAT (4mm)
Message-ID: <1990Jul9.134742.1114@tsa.co.uk>
Date: 9 Jul 90 13:47:42 GMT
References: <9007061713.AA01816@stc06.CTD.ORNL.GOV> <1881@proa.SV.DG.COM> <25082@bellcore.bellcore.com>
Reply-To: domo@tsa.co.uk (Dominic Dunlop)
Organization: The Standard Answer Ltd.
Lines: 11

Adding my two-penn'orth to this discussion, I'd counter the assertion that
DAT was made for digital data, whereas 8mm was not by saying that the
frequency-modulation method used to record video signals on tape is very
similar to digital recording: no bias signal is used; replay amplitude 
and waveshape are not important; zero-crossings are.

I also understand (from the hi-fi audio press, so hardly from an
unimpeachable source) that the pretty much identical metal dust tape is
used for both DAT and 8mm video.
-- 
Dominic Dunlop