Hi! I started rocksmith 2014  1 month ago  and  i saw  custom songs on the internet,and i decided to   dowland som custom song.  I dowlanded some song with horizon and put it to rocksmith 2014 ,but when i launch the game i get a mesage: Warning downloadable content appears to be damaged, please delet the files and dowland agin. I did this a few time, but i always got the same mesage.  So please can somebody help me to solve this problem?  I've got rocksmith 2014 on xbox 360.