Yes but you use one part of the same image do you not? That is how Watchout and other systems work. all you are seeing is a different section of the same image or clip.

When you use the new panorama functions you are essentially doing this. Your mask for instance would be a single file across 4 screens not 4 separate files.

I have a 4 x Raptor RAID that can give me 4 layers of DV but not 1024 x 768 Photo Jpeg without some dropped frames. As Richard says, you really have to try it. I have an Xserve RAID but I still have to check every combination I come up with.

Cheers

Toby