Hmmmm so the Rocksmith Custom Song Toolkit now opens without any issue, however i select my p.psarc file to convert which turns into m.psarc after selecting the song from the list. I then add it to my DLC folder within my steam account (yes i have purchased cherub rock already and is the same area it is kept) and nothing happens from there. I have restarted steam, rebooted the computer and for whatever reason the newly created m.psarc file will not appear in my song list area. Any ideas?