HD Floppy & more
09-Nov-92 17:10:12
Sb: #76751-HD Floppy & more
Fm: Jim Nangano/SYSOP 76703,4254
To: Mathew Mower 70712,221
Mathew,
I'll try to respond to some of your complaints and may add some facts
to support Commodore's actions, although I'll be the first to admit that
there are some "gray areas". However, there are some mitigating factors
of which you may not be aware that make some of the issues you raise a
little less black-and-white.
First, concerning the HD floppy issue — you have to understand that
the "standard" HD floppy drives used in both Macs and Klones will NOT work
on the Amiga, due to the initial design of the Amiga floppy drive
interface going back to the A1000, and which continues today through and
including the A4000. While the Macs and Klones use standard "off the
shelf" controllers to talk to their floppies, the Amiga floppy drives are
controlled by the "overworked" custom chipset. The Amiga chipset does not
provide the bandwidth needed to read the data off of standard HD drives
fast enough.
Because of this, Commodore has had to have some CUSTOM floppy drives
designed and built to support the HD format – these drives basically spin
at half the speed of the "standard" HD floppies, so the Amiga floppy
driver can keep up with the data rate coming off of the disk. Since these
drives are single-sourced (as far as I know), Commodore is at the mercy of
the supplier – if they can't get them fast enough to meet production
demands (for the 4000's), they surely won't have any available to sell
through Parts.
There have also been some problems discovered with the HD drives and
AmigaDOS 2.04 that have been fixed in later versions, which leads to your
number 2 complaint. If 2.1 isn't yet available in the consumer channels,
then it really doesn't do any good in making the HD floppies available,
except on 3.0 machines (the 4000).
As to why 2.1 isn't readily available, I really have no idea. The only
thing that I can "guess" is that Commodore, having limited resources, is
spending all of their "production effort" getting 600's, 1200's, and
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