Actually reading a bit more, sounds like it uses blacklisting.
Much like the newer PC copy protection will detect 'fake' drives like daemontools or whatever (used to fake some protections... mount .iso images and make appear to be a burned cd in a drive, but actually just a program opening an .iso file)
Anyway, sounds like this blacklists any technology that might be used to rip the music. That is cd burners, hard drives, mp3 recorders or converters, and related technology.
Where it does run on Windows it installs the license file that it checks every time you listen to it, and if not found will not play (not sure if there is a limited '2 installs' per disk or if its infinate)