Yeah, I find the whole duets when the singers are apart thing a little weird. I guess it is easier for the artists, but I would think that having the two of them together would make the song sound much more authentic, so they can play off of one another's sound and emotion.
I'm not an MJ fan, haven't even heard that CD even, but I just find this to be disgusting, honestly. Why not just release a tribute album? Stop being so damned money hungry. Music executives, all of that, make me sick. The lying and exploitation for money is pathetic, considering how much they actually go on to give artists vs keeping for themselves. It's no surprise then why they shut down megaupload/megavideo with the news of them moving to release a program where money would be given directly to the artists.