@ kvasarnomad
I too had identical difficulties with my A1200 - I formatted a DS/DD diskette as PC0: on my Amiga, but PC just couldnt recognize it. Then I formatted that same diskette on PC, and it became recognizable both by the PC and A1200.
I wonder why is that, but anyway - it doesnt really matter, because now when I want to format a diskette to be readable both on PC and A1200, I use PC's FDD.
Anyway, I suggest that the first thing you transfer from PC to Amiga be PC2Amiga software, so that you may in the future transfer files between Amiga and PC by parallel or serial cable. It is much more convenient :-)