MJacksonFace052308.jpg There are still hundreds of questions lingering after the death of Michael Jackson last week, but hopefully some recent rehearsal footage will help give investigators (not to mention fans) the answers they've been looking for.

According to The Hollywood Reporter, AEG Live, the company producing Jackson's 50-concert London tour, videotaped all the rehearsals and the company has roughly 100 hours of rehearsal footage (including last Wednesday's practice run at the Staples Center, which was the night before the pop icon died). The hours of video could give clues as to how healthy Jackson was in the last two months of his life. Those backing him financially claim that the singer was fit and energetic, while many of his close friends contend that the 50-year-old was frail and out of shape.

On the bright side, the tapes include enough audio to fill two live albums worth of material, and these recordings could end up being incredibly profitable. Jackson never released a live album during his career, and fans and collectors would likely go crazy for Jackson memorabilia like this. A source tells THR, "AEG spent $30 million putting this together. The video, the lighting, the staging - it's all extraordinary. They're the first to use a new 3D projection that will blow people's minds."

As far as refunds for the shows, AEG said yesterday that the 750,000 fans who paid to attend could get a reimbursement by August 14, or they could choose to receive the actual tickets, which could be valuable collectors items. Jackson fans spent more than $90 million on the tickets, so it will be interesting to see how many of them will opt to hang on to what would have been the king of pop's last show.