Just thought folks would be interested to know I have got very good results from an H.264 codec called CoreAVC, which once installed into Media Player classic, seems to be able to play without any dropped frames etc on my laptop. (Dell XPS 1530, nVidia chipset, Vista). Using the standard codecs I could not get a playback result that was equivalent to the output from exe. I even tried this at 1920x1080 @ 60fps and it seemed to work great! My test file had pans, zooms and rotates.