ECMA 46 tape standard

From: Tony Duell <ard_at_p850ug1.demon.co.uk>
Date: Wed Aug 6 17:01:28 2003

> I am pretty sure, though that this drive is not QIC11 (I did wonder about
> coverting it to that format once many years ago as I needed a QIC11 drive
> for the PERQ).
>
> --
>
> Archive developed the movable head serpentine recording techinique that
> begat QIC11 (and the 9 and 15 track formats) MANY years after 3M developed

FWiW, the Penny and Giles drive I mentioned doesn't have a moveable head
(it's got 4 separate windings, for the 4 tracks, in one fixed head). And
it deosn't appear to use serpentine recording -- it implies it rewinds
the tape at the end of each track. I have no idea how much of this is
related to ECMA 46...

-tony
Received on Wed Aug 06 2003 - 17:01:28 BST