I just got a Mac to do editing where I work. I got the 20" 2.0 GHz COre Duo iMac. Just for kicks i thought I would give HandBrake a test. I took CHapter 5 (6 minutes and 44 seconds long) of the movie Luther (what can i say? I was born and raised Lutheran and I work for a Lutheran church... it made sence! lol) Anyways, back to my story..... it took about 12 minutes to encode Chapter 5 in H.264 at 661 kbps. It's average frame rate was around 26 fps. Needless to say... I am VERY impressed.