Re: Apple2 disk controller questions

["Fabrice Frances" <frances@ensica.NOSPAM.fr>]

Rubywand a �crit dans le message <37389CF7.78BF9F62@swbell.net>...
>     Apple II 5.25" diskettes are GCR encoded. Rotation speed is 300rpm
>(200ms per rotation). 250kbps sounds about right for the max transfer
rate--
>not sure about that, though.


Thanks, Rubywand, but I'm still confused about the figures...
It seems the .nib format used for Apple II disks holds 6656 bytes per track,
or 70 phases every 3328 bytes... Either one of these 300 rpm, 250 kbps,
6656 bytes/track cannot be exact... so ?

Fabrice