Hi DP, this is looking VERY interesting indeed. If you can run this at 20fps or even 15fps with the new codec it would be a boon indeed... I note the raw mode certainly doesn't seem to be doing anything extra which is what I concluded. Perhaps if seeing conditions are exceptional, but when that happens I get all panicky and want to get avi on disk and not spend all that time mucking about with settings so the clouds close in when I'm not looking