I had no idea what speeds others had acheived.
I made it for low noise Xray & microscopy.

Well on my 2GHz XP it reads 9 files (640x480 grasyscale) from disk, combines
the 9 images and displays the result in 0.76 sec (8 bit grayscale only at
this time)

It doesn't allign - it just combines.

that would be a good 1 for it how about give us a download link so we can
try it.

Sure - give me a day or two to clean it up.

John