here what I tried and the results Things I used: Data transfer cable for X360 Cherub Rock DLC First, I bought Cherub rock DLC on xbl marketplace. Then I disconnected the HD from the xbox, plugged it with the data transfer cable on my laptop. Opened Velocity, went to the Rocksmith 2014 content, and added a custom DLC (tried with 3 songs) Then clicked Harsh/resign Closed everything, put back the HD into X360. Opened Rocksmith and... the songs don't show up in learn a song or Score attack mode. Went back to dashboard, memory, and the songs are there (on my HD), but they only don't show up into RS. This is were I am. As I'm new to this, I'm just gathering information across Internet and the multiple forums. I'll try other things tonite (backup the DLC on my laptop, add the song, reharsh/resign and inject back on the HD) If anyone think of a any steps I forgot, please let me know. thanks