I have a video project in iMovie and created this, I now wanted to convert to H264. Unfortunately jerky video after the conversion without end. That I know of synonymous HD trailer what my iBookG4 simply no longer cope.
The footage from iMovie is DV material.
Export Settings: In Quick Time Movie -> H264 compression -> 25fps frame rate -> Keyframe every 50 -> data restricted to 512Kbit / s -> fast encoding -> quality 50% -> 640 x 480 Sound -> AAC -> 128kbps -> 44.100kHz
These films do not run around on my MacMini CoreDuo1, 8Ghz and the iBookG4? Comparison about this, I have mov files on the old iBookG4 (of Mac-TV) with the ca.800kBit / s encoded. The rest is the same and these films are unnecessary.