Here's an early release of the mod I have been working on and covered in
this thread from
page 3 onwards.
Note this is Beta so there may be some undocumented features. See below for current known issues/limitations which I will try to update as I get feedback.
However, I and others have tested this mod and it works well as a single drive and in big box Amigas with two drives.
Issues and Limitations- ATK reports the drive ID for HD disks as unstable. This issue doesn’t affect normal use.
- Some NDOS games do not work. This is not caused by the HD modification - see this and 3 below
- Some Sony floppy drives do not work well with OS 3.1.4 and OS 3.2. This applies to both the basic DD and my HD modifications.
- Currently the mod is for the Sony MPF920 range of floppy drives only. I intend to experiment on other drives so more may be included under future releases.
Known working drives
Model...........IC2..........Resistor Replaced?
===========================
T/B53.......D9848N..............Yes..............
Z/131.......BA6986FS...........No...............
E/131.......BA6986FS...........No...............
The attached zip has the jed file and instructions. You will need a GAL16V8 PLCC.
The instructions assume you are familiar with modding a Sony drive to work as an Amiga DD drive. If you are not, search for your drive in the
Modifying PC floppy drives for Amiga use thread.