I'm trying to encode a video using HandBrake, but every time I try it seems to make the video twice as long and half the speed.
I've tried default options for different H.264 formats with the same results.
What OS / Platform are you using? I had some issues with Handbraked video's when I had an old EyeTV Plugin installed to Quicktime's plugin folder... This might also apply to old DIVX plugins as well, since EyeTV bundles a version of Divx.