Thnx MisterMe & gsahli
I installed NetPresenz, but when I transfer a file (from OS X 10.7.3 to OS 9.1 in both modes Binary & ASCII - through Firefox using FireFTP plugin) the OS 9.1 receive it as a generic file and cannot be recognized!
Any suggestions.
TIA
Here is the deal,
gsahli is correct about resource and data forks. There is something else--CREATOR and TYPE codes. MacOS 9 and earlier versions the classic Mac OS associate files with their default applications using the CREATOR code. The OS uses the TYPE code to tell the application the filetype of a particular file. The CREATOR/TYPE code metadata reside in the resource fork of each file.
Classic Mac OS users learned to append extensions to the file name if they intended to share a file with DOS/Windows users. Without seeing your PDF file, I can state with absolute confidence that your PDF files have the .pdf extension. This is why MacOS X recognizes them as PDF files.
On one level, CREATOR/TYPE codes were an essential feature of the Classic MacOS. On another level, it was strictly a convenience feature. The scheme virtually eliminated the need for Mac users to concern themselves with filenames.
In order for MacOS X to associate files with default applications, you need to add appropriate extensions to your filenames. If you have a small number of files that don't have extensions in their names, then you may manually add the appropriate extension. If you have a lot of such files, then you need a renaming utility. The utility must have the ability to add the appropriate extension for a particular TYPE code.
The best rename utility is
A Better Finder Rename. It can rename files based on metadata. However, I don't know whether or not it is able to map the TYPE code into the appropriate extension. This is a veteran utility that was available for MacOS 9. If you can't find the MacOS 9 version, then you may need to add the extension on the MacOS X side.