Re: Copying Mac MFS disks on an Apple II

[willi@wilserv.com (Willi Kusche)]

Hi!

"M. Pender" <mpender@hotmail.com> wrote in message news:<xoS5b.17821$NF5.17529@nwrddc01.gnilink.net>...
> IIRC Mac HFS disk blocks are not the same size as ProDos disk blocks; there
> are a few extra bytes thrown.  A simple block-by-block copy using MLI calls
> would not catch the additional data, and I doubt that the 512 byte ProDos
> blocks will be very appealing to the Mac.
> 
>  - Mike

    As I mentioned in a prior message in this thread, I was able to
create a copy of the MFS (400K, single sided) disk using a Mac
emulator.  The output disk is an HFS (800K, double sided) disk created
using an Apple 3.5 inch disk drive.  The HFS version boots and runs on
the Mac emulator.

    I was then able to make a copy of the HFS disk using Diversi-Copy
on a IIgs.  The copy also booted the Mac emulator and ran OK.  So, it
is possible to make a copy of a Mac HFS disk on a IIgs.

    I did try making a copy of the MFS disk with Diversi-Copy.  The
first 800 blocks of the MFS disk were read OK but then Diversi-Copy
quit saying that the disk was bad.  So, while an MFS disk can be read
on a IIgs, it apparently can't be copied.

Willi