Re: High and Double density floppies

[dchiu@netcom.com (David C.W. Chiu)]

In article <2kbvdu$nd2@news.tamu.edu> akitomom@cs.tamu.edu (Akitomo Morita) writes:
>The main problem is that the Apple Disk ][ uses a different method to write
>data to the disk than IBM style drives.  The Disk ][ uses a method which is
>call GCR (Group Code Recording) and IBM style drives use MFM (Modified
>Frequency Modulation) which are incompatible, i.e. a GCR drive cannot read
>disks written using MFM and vice versa.  I believe that there are drives
>which are capable of reading both type of disks, though.

True, but DSDD IBM floppies *WILL* format on Apple II drives... Just don't
try to use any 1.2MB floppies on Apple IIs...