I have a DTS transfer of this disc, masterfully crafted by Quadtrade. The mixes are quite good, very discrete, but the lead vocals are not the final lead vocals used on the conventional issues. There are some flubs, in one case Diana Ross stops to comment while the song plays on. Easy to see why this was not released worldwide. I guess they figured the Japanese market would not be familiar enough with English to notice the difference, but anybody familiar with these hits (and who isn't?) would certainly notice.