According to a posting on The Deep Purple Appreciation Society web site, the first three Deep Purple reunion albums "Perfect Strangers" (1984), "The House Of Blue Light" (1987) and "Nobody's Perfect" (1988) will get the SHM-CD (Super High Material CD) treatment in paper sleeve editions. They will be issued in this format in Japan in late February 2009 as limited editions.
According to Positive-Feedback.com, Super High Material CD is an improved version of the Compact Disc material that uses super-quality, enhanced transparency polycarbonate material developed for use in LCD screens. They will play in any CD player. Universal Music Japan and JVC co-developed the SHM-CD. They report that the new material allows the pits to be formed more precisely plus eliminates laser splatter. The signal characteristics are improved as a result with overall lower distortion and better musicality.
Thanks for the report to Blabbermouth.net.