The absence of a official linux version of iTunes giving all linux users no legal way of obtaining and playing back protected songs. QT Fair Use is a smart application that removes DRM from songs bought by iTunes leaving the tag of the user who bought it in the file. This makes it useless to try and spread the file on the internet afterwards because it would be to easy to find out which user purchased the songs and got the ball rolling in first place.
QT Fair Use can process all songs that are currently in the iTunes library at once making it an ideal tool for users that have a lot of songs that they bought from iTunes. A great feature is that the program works on Windows, Macintosh and most Linux distributions making it a highly flexible solution for most users.