#: 13533 S10/OS9/6809 (CoCo)
    18-Dec-91  09:17:36
Sb: #13524-Hard Drive Analysis
Fm: Lee Veal 74726,1752
To: Erich Schulman 75140,3175 (X)

I think you're correct.  The ILV value determines, as I understand it, what
physical sequence the sectors are written in.  They're still numbered from 0 to
whatever (logically), but physically sector 0 is not necessarily going to be
followed immediately by sector 1.

The interleave parameter is probably ignored for normal reads and writes, i.e.
those writes done in a formatting mode.

Lee