Thanks Maarten for the original script, and PhilFree for the modifications. I'm finally taking the jump to some video in HDR, though I've only done stills before. I'm going to take some test footage and play around with the scripts to see what might work out best for me. Multithreading would definitely be a plus. I've got an 8-core 4GHz CPU in my Linux box, and using more of its power would help!