>PC0 wouldn't work unless CDFileSystem was in the drawer L
PC0 works without CDFileSystem. I just took mine out and rebooted and PC0 reads PC formatted disks 720K. The mount file makes no reference to CDFileSystem, only CrossDOSFileSystem... So perhaps someone could explain what you are talking about.
Device-mfm.device
Unit=0
Flags=1
Surfaces=2
BlocksPerTrack=9
LowCyl=0
HighCyl=79
FileSystem=L:CrossDosFileSystem
Stacksize=2000
Priority=5
GlobVec=1
DOSType=0x4D534400
Buffers=5
BuffMemType=0
Activate=1
CDFileSystem is to do with CD not floppy disks
scuzz