Japan original SACD Hybrid release of Miles Davis's legendary album featuring digital remastering (remastering same as that used in the popular 2006 cardboard sleeve version). *Note: this release does not contain a carboard sleeve. *SACD layer also includes 3.0ch surround version of the recording. To experience the multi-channel version of the recording, multichannel SACD player is needed and it is best experienced with surround speakers. 2ch stereo version of the recording is also included.