Fix: The CDLC pack was built for a different audio engine. Go to Options > Audio Settings and change "Audio Exclusivity" to Off. If that fails, the CDLC author used a "RS1" tuning calibration. Open the file in the Toolkit and recalibrate to RS2014 standards.
Fix: You did not buy the official "Cherub Rock" by Smashing Pumpkins DLC on Steam ($2.99). The CDLC mod uses this song's ID as a skeleton. Buy it; do not pirate it. rocksmith cdlc pack
A "CDLC Pack" refers to a collection of Custom Downloadable Content—unofficial, community-created songs that you can import into the game. This article is your complete guide to finding, installing, curating, and mastering Rocksmith CDLC packs. Officially, Rocksmith uses .psarc file formats for its songs. Custom DLC (CDLC) uses the exact same format, tricking the game into thinking fan-made charts are official tracks. Fix: The CDLC pack was built for a different audio engine