The "I just know it" must have a clear benchmark to draw such a conclusion. I don't really see a clear benchmark in your reply. If there's no benchmark, it'd be the same as saying "I just know it that theree are ghosts around me." Something must indicate the reasons for believing or hearing something.
Bumper, it seems to me you want to believe the Cascio tracks are real, but can't. Maybe I can help you.
According to the hoax theory, Eddie Cascio hired an impersonator for his 12 tracks. But why did he do that? He already had a singer who could sing the tracks : James Porte. So why did he need to hire somebody else? Because James Porte doesn't sound like MJ. So Eddie had to hire an MJ soundalike, and in fact, he did find one, because his tracks were bought by the Estate, and 3 of them are now on an official MJ product.
Therefore, whoever sings the Cascio songs does sound like MJ. The Cascio singer's vocals are incredibly similar to MJ's. Otherwise, there would be no hoax, no fraud, and no "Great Album Debate".
But you might say, "why is it then my ears tell me the singer sounds nothing like MJ?" It's because of psychology. As you listen to those songs, you listen to them in a way you've never listened to any other MJ song before : you're picturing the singer as an impersonator. That's why your ears hear what you say they hear.
Just yesterday actually, I had a long drive in the car, and I listened to Invincible twice, and to "Michael" once. And it just struck me once again how the whole debate we've been having here is based on subjective, psychological impressions. If the "Michael" songs had been on Invincible, we would have never questioned them. But on the other hand, if the Invincible songs had been on "Michael", we would have found them suspicious. Just as an example, what's with MJ singing the word "lost" as if it's pronounced "low-st" in "You are my life"? And later in the song, he sings the exact same word correctly. Can you imagine, if that song had been a Cascio song, how much the pro-fake people would make of such a weird, incorrect prononciation of a simple word?
Or what about "Whatever Happens"? In the final ad-libs, and especially the very last "YEEAHH!", MJ's voice is SO low, so guttural, that it really sounds nothing like anything he's ever sang. Listening to those ad-libs, I'm amazed it's MJ at all.
So in the end, it's all psychological. Bumper, next time you listen to the Cascio tracks, picture MJ singing them, and imagine them as Invincible outtakes. You'll soon hear MJ again. But be prepared -- it ain't top-quality MJ. More like tired MJ in his pyjamas phoning it in.