Comment by js2

$1.29 - https://www.apple.com/newsroom/2007/05/30Apple-Launches-iTun...

18 months later the entire library became DRM-free iTunes Plus quality and you could upgrade existing songs you had already purchased or that you had in your library via iTunes Match.

https://www.apple.com/newsroom/2009/01/06Changes-Coming-to-t...