If you still have an amiga 500 with Workbench 1.3 you can use this drive. Look for the PCUTIL folder on the workbench 1.3.2 extras disk. The utilities in this folder allow you to format, copy and access files in 5 1/4 DD MS-DOS formatted floppies.
Don't know if this work on an 1200 tough.
The other option is to edit PC1 to match the specs of the drive (heads, cylinders and sectors).