I generally download the Handbrake nightly and use it for about a month before downloading a new version. So about a week ago I got a new nightly and wow is it faster. What happened? I have a late 2009 MBP 2.83 ghz and I encode both SD DVD and Blu-Ray's as an MKV with an RF of 20 and DTS Passthrough. Before this new nightly I would see the following: SD DVD - 24-26 FPS encode Blu-Ray - 6-8 FPS encode Now I am getting this: SD DVD - 115-120 PFS encode Blu-Ray - 22-25 PFS encode That is a heck of a difference. The Handbrake version I got is '4080 svn'. Was this just an optimization? Or a total rewrite (which I doubt). Whatever it was thank you Handbrake!!