This article is from the Amiga Networking FAQ, by Richard Norman with numerous contributions by others.
There are now commercial products which allow the Amiga to read Mac formatted floppies and disks (both removable and hard). MaxDos and CrossMac.
Under System 7:
The Mac will automatically recognize a MSDOS disk. Another trick learned from the Amiga. It is called PC Exchange and has a control panel for dealing with SCSI disks.
Under system 6:
The Mac can also read and write MSDOS format floppies using the Apple File Exchange utility which comes with the Mac operating system. AFE is not automatically installed so you may have to get off the master diskettes if you cannot find it on your Mac. AFE can also format a disk as MSDOS. AFE MUST BE RUNNING BEFORE you insert the MSDOS disk or it won't recognize it
 
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