* "Michael Graves" <[EMAIL PROTECTED]> on Thu, 07 Jun 2001
| Overlap of the track is not necessarily bad. By varying the placement
| angle of the heads on the drum (azimuth?) we can effect an alternating
| polarization of the tracks as they are written to the tape. This allows
| the tracks to be written such that they overlap slightly, which allows
| for increased track density.
That is one of the tricks that DDS-2, -3 and -4 use to increase data
density. And it goes a long way towards maintaining compatability with
previous standards. There is still a limit to how much overlap you can get
away with before "noise" starts drowning out "signal".
--
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