Mac OS using PC Exchange stores its various dates, file attributes and long filenames in a hidden file called "FINDER.DAT", and resource forks (a common Mac OS ADS) in a subdirectory called "RESOURCE.FRK", in every directory where they are used. From PC Exchange 2.1 onwards, they store the Mac OS long filenames as standard FAT long filenames and convert FAT filenames longer than 31 characters to unique 31-character filenames, which can then be made visible to Macintosh applications.
mac os using pc exchange stores its various dates file attributes and long filenames in a hidden file called "finderdat" and resource forks (a common mac os ads) in a subdirectory called "resourcefrk" in every directory where they are used from pc exchange 21 onwards they store the mac os long filenames as standard fat long filenames and convert fat filenames longer than 31 characters to unique 31-character filenames which can then be made visible to macintosh applications