I have some data files that I want to make available to users of Windows, Mac, and Linux. The files are pdf and mp3. I can use Windows Installer or a self-extracting zip file for Windows, but I need to be able to create files that will work on Mac and Linux. I do not have a Mac and I don't run Linux, so I need to be able to do all of this from Windows (I'm running XP). Is this feasible?