McDonald took a couple of years to research the contents and improve the technology to rework the formula and return in 2006 with the modern day Polishing of Metal. Now centering purely on the life and times of Heavy Metal, "Polishing of Metal" managed to impress both the industry and music fans alike. Except for the graphic arts, music & video conversions, the entire Polishing of Metal project was written and conceived by Derek McDonald. The elements that made Recorded History a true interactive multimedia experience were still there but they were augmented with the glitz of entertainment. This time featuring some 19 music videos, 5 and a half hours of music in both MP3 and standard audio format allowing the disc promotion on radio, some 5000 pages of PDF & HTML encoded text, Internet links and 1304 artist biographies with some 900 album reviews. The cover art was updated to feature a new rendition of long-time mascot "Skel" (Skel has appeared on the cover of all of McDonald’s projects) and was drawn by Barry Waddell of Florida, USA act Seasons Of The Wolf.