Thanks for the replies everyone, you have taught me a valuable lesson in searching the Steam store. I initially thought that these songs were part of the first Rocksmith as you mention so I typed "Don't" in the Steam store search and the song didn't show up in the context sensitive results so I then erased "Don't" and just typed in "Reaper", again nothing (song related) so I assumed it wasn't for sale on the Steam store and proceeded to post my message on this forum. After reading your replies, I went back to Steam and typed "Don't Fear" in the store search and it shows up. Lesson learned :) Thanks again!