RE: mp3 activation code
CAKE provides a (free) Lame based encoder as part of their (much) cheaper Pyro and Mediaworks apps. (Maybe other apps as well, I don't know). Cakewalk's philosophy is that they provide the Fraunhofer encoder and charge a license fee for those users who want it, rather than adding the cost of this to SONAR for every user. I think this makes sense, especially since there are other options including using free standalone encoders, using the encoders provided in audio editors, and using mikkele's excellent CWENC app (LAME based).
Cakewalk, Studio One Pro, Reaper
Presonus Audiobox 1818VSL
ASUS Prime Z370-A LGA1151, 32GB DDR4, Intel 8700K i7, 500 GB SSD, 3 x 1TB HDD, Windows 10 Pro 64