What is "Blu-spec CD"?

These are starting to be released in Japan. What exactly are they and how do they differ from redbook in technology and sound?

rja11-13-2008 9:23pm

audioholik Details Discussions Posts This discussion Message User 90 posts 11-14-2008 at 12:32pm Copy Comment URL Report Comment Edit Delete they differ in that they are burned with more precise blue laser normal CD vs blu-spec CD but Blu-spec CD's are still low resolution CD format we know since year '82. I'm curious whether Sony will also decide to release Blu-spec SACD's , that would be nice...