Disk hardware emulation, was Re: Grandfather system RTE6/VM?

From: Andy Holt <andyh_at_andyh-rayleigh.freeserve.co.uk>
Date: Thu Dec 11 00:35:24 2003

> Other than FM, MFM, RLL and some newer ones what other magnetic
> disk encoding
> schemes are there?

By "RLL" I assume you mean RLL 2,7 (at least 2 transitions in every 7 bit
times) - the one that gave about 50% greater capacity than MFM on "the same"
drives.
"MFM" is technically RLL 1,2 (ISTR)
There was also a controller whose name escapes me that used RLL 3,9 to get
90% greater capacity.

Andy
Received on Thu Dec 11 2003 - 00:35:24 GMT