ok - check this out:
"Using software that can read PC formatted disk
If you have KickROM version 2.0 (or higher) and the Workbench 2.0 (or higher) disks then this software is already on these disks. The first thing you should do is formatting a 3.5" double density disk on your PC. You can copy the files that you need to this disk (for example: TwinExpress). Start the Amiga with Workbench 2.0 (or higher) and put the disk in your Amiga diskdrive (DF0:). You can find the needed software in the "/storage/dosdrivers" directory. If you run the file "PC0" your Amiga will automatically detect that the disk in DF0: is an DOS-formatted disk and an extra icon will appear. For using DF1: run "PC1". You can click on it and as you see the file you put on them are now visible (if not so try the "Window" workbench menu and select Show -> All Files)."
i tried this. out of my collection of Amiga disks a grabbed a PRECISION MF2DD disk (with data on it). i put it in the PC and format (using "720Kb & 512bytes/sector") the disk. then, i JUST manage to squeeze a file on it (disk2 [its an ADF i am sure, it just didnt have the extension])
so - so far. a formated DD 720Kb disk with NOW data on it. then, i put this into the amiga - using the PC1 program - and it basically did nothing at all. in fact, the disk showed up as DF1:

?
yet, in the quotations it said doing this should work?