Reason 5 Makes A Pretty Sweet Mastering Suite For Non-Reason Mixdowns
"Thanks to its external audio sampling and sample-playback capabilities, Propellerhead Reason 5 makes a handy mastering solution for your music irrespective of that music's origin platform. SO long as you can bounce your music to a WAV file, you can play it back in Reason 5 and feed it through the impressive-sounding MClass rack effects.
While that may sound fairly straightforward, there are some nuances to this method. For instance: what device in Reason 5 should you use to playback your unmastered audio? That and more are covered in this methodical how-to video." -Gearwire