TANGERINE DREAM Rockface (2009 Japanese exclusive limited edition 20-track Double HQCD [High Quality Compact Disc - playable on all CD players] set recorded live in Berkeley in 1988 within a mini LP-style gatefold card wallet picturesleeve with Japanese & English info sheets and obi-strip still in the hype stickered re-sealable bag IECP-20168) The HQCD [High Quality Compact Disc] format features enhanced audio quality through the use of a special silver alloy coating as opposed to aluminium. Using a process developed by optical disc maker Memory Tech HQCDs are fully compatible with standard C