Sorry if this has been answered elsewhere but finding it difficult navigating so many different Mac/PC tutorial threads! I'm running RS2014 on Mac (which is in turn running Mojave OS 10.14.2) and have followed the instructions to enable CDLC playback (including purchasing Cherub Rock) posted here: http://customsforge.com/index.php/topic/33889-how-to-add-custom-songs-on-mac/ I have then downloaded a mac CDLC from http://ignition.customsforge.com/ and extracted the file (ACDC_Highway-To-Hell_v2_m.psarc) to the /Library/Application Support/Steam/SteamApps/common/Rocksmith2014 folder as instructed. (Not sure if this part is relevant but I did notice that despite the file having a m.psarc file extension, unlike all the DLC files in the folder which have a black 'box' icon next to the filename, the new file just has a white icon next to it) I have also installed the Mac OS X 10.8 and higher (including MacOS Sierra) patch as per the installation instructions above. But despite being able to see the official Cherub Rock DLC in Rocksmith/Steam, I can't figure out what to do next in order to play the downloaded CDLC. So any help with next steps would be most appreciated. Thanks in advance!