Re: Apple2 disk controller questions

[supertimer@aol.com (Supertimer)]

greg@apple2.com wrote:

>supertimer@aol.com (Supertimer) wrote:
>
>> What I don't understand is the high density 3.5" Apple II
>> format.  Like the Mac, high density 3.5" Apple II disks are
>> 1.44MB MFM.  However, there is a special 1.6MB GCR
>> format that is used by AE's driver for the IIGS.  I'm not
>> sure how the AE driver squishes those extra few kilobytes
>> into the disk.
>
>Is that 1.6 MB or 1600 KB?  I know it's 1440 KB and not 1.44 MB.  One
>should not mix 1024 and 1000 multipliers like a marketroid does.

1600k.  Exactly twice an 800k disk.  This looks to me like an 800k
GCR disk doubled, just as a 1440k DOS disk is a 720k disk doubled.