I speak for the original Creative Sounds 6006 CD, NOT the 6006-2 one, which you must apply de-emphasis on your player or manually on PC. I listened their first album over twenty years and have countless versions (this is my favorite album ever). So, the Castle with pre-emphasis, the bright Warner Bros, the very equalized WG Vertigo, clones of those (Teichiku TECP-23892, which is Castle with pre-emphasis already applied. Japanese vertigo 23PD-133, which is WB), the loud 1996 remasters, 2009 Sanctuary and brickwalled Black Box, 2014 HDtracks, their 2016 16/44.1 CD versions... Too much UK, US vinyl rips (PBTHAL, etc.) The original Creative Sounds 6006 CD is the best, imho. (I separated in Audition the "duo" tracks, for better titles selection.) You hear all instruments distinctly, and the sound isn't harsh or muffled. No sound glitches like some other versions (WB, HDtracks...). Just listen the eponymous title, Wizard. You have Tony, Geezer, Bill and Ozzy playing in your house ! The jam fest (Warning) becomes a monster Opinions ?