Storm Corrosion is the long-discussed and highly anticipated collaboration between two of the modern progressive rock scene's most innovative and multi-talented artists: Mikael Åkerfeldt of Opeth and Porcupine Tree s Steven Wilson. The special edition is limited to only 5K copies in the U.S. and contains the standard CD and Blu-ray with 5.1 mix of the entire record, 2 exclusive demo tracks, & 5 instrumental tracks