DEC (Minc 11?) RX01 disks and PUTR

From: Don Maslin <donm_at_cts.com>
Date: Fri Apr 20 19:11:30 2001

On Fri, 20 Apr 2001, ajp166 wrote:

> RX02 is a custom format that only DEC did (or DEC compatable)
> and it's single density header, 256byte double density (m2fm)
> from a 2901 based microcontroller.

The DD part sounds rather like what Altos used on their 8" DD disks,
and which no PC FDC that I know of can read. I doubt that they did
the SD header part though. Have to fire up my Sierra (Altos clone)
and see if it can read the RX02 stuff - or at least look at it with DU.

> Soooo, it is caused byt the RX02! FYI the RX02 can read RX01
> but RX01 cannot read RX02 unless the RX02 formatted the media
> as RX01. RX02 is DUAL density whereas the RX01 is single.

Gotcha!
                                                 - don
> Allison
>
>
>
Received on Fri Apr 20 2001 - 19:11:30 BST