Re: AEHD drive

[cturley2@aol.com (Cturley2)]

Pim Blokland <nipp@nipp.nl> wrote:

>supertimer@aol.com (Supertimer) wrote:
>
>> GCR is 800k and 1.6MB.  MFM
>> is 720k and 1.44MB.  When Apple later capitulated to the PC
>> world and switched to MFM, they had to make a new controller
>> for Macs, the SWIM.  They provided the capability for Apple II
>> users via the SuperDrive (SWIM based) card.
>
>*** warning: stupid question alert ***
>
>So I've got this Mac here, see? And it has a SuperDrive, right? It can 
>access MFM disks (720K and 1440K) - it can even create ProDOS 720K 
>disks, given the right software. And it can access GCR disks, OK? 
>And it handles HD disks, OK?
>
>Why then can this Mac not read 1600K floppies, so that I could use 
>&@#$#^& HD disks for exchange with my GS?!?

Followed by this from Supertimer:

"That's a good question.  Most likely, the floppy driver built into
MacOS is set to automatically assume a 1.44MB MFM format
when it detects a high density disk.

If you know how to program the Mac, you might want to try
writing your own driver."

And I reply: 
There is an AEHD disk drive with drivers already for the Mac.  I have one.
It will access, read and write to the1.6MB formatted disk as such also.
This is currently only possible with that specific AEHD for the Mac in use on
the Mac with the proper driver for it installed also.

Now, if somebody had the skill to write a driver for the Mac to allow the other
Mac drives and it's OS's to format, read and write to this 1.6MB floppy 3.5
disk and DID IT and released it - that would indeed be a nice addition to the
Mac.

Cheers,
Tom