We are impressed! Thanks for taking the plunge ockham -- although now perhaps its just "curiouser & curiouser". Don't think you have to actually "pull the plug" though. See ** below. However, first, a MISTAKE on my part: There is NOT 1 file per light as I had stated above. Just did a render with the 3 standard lights (as spots) and only got one poserTemp. file created. (oopsie!) Also, I'd never noticed before, but it continued to increase in size, even after the shadowcam calculations, throughout the entire scanline by scanline render process, until it reached its final size only when the render was also completed. ** When the render had only a few scan lines left to go, I hit Ctl-C on the poserTemp file, - did not paste - and at the completion of the render the file remained, (I presume, waiting to be pasted somewhere?). Very strange image you've got there. The camera angle on the feet and wheel appear about the same as the render, however their position relative to each other and the framing is clearly changed. HUH? Many thanks to the wizards ockham and Mason for ID'ing the mystery .RAW format, once again enlarging the community knowledge base and enabling the rest of us mere mortals to play about with them!