So what is the best codec to use when recording high-def? WMV-HD or DivX-HD are both recorded at 1280x720 but one must be better quality then the other. Each one of these codecs can record at different quality at the same resolution but the bit rate changes to allow for smaller file sizes. DEN GURU did a set of tests that compares them against the original high-def transport stream. What we liked about their shoot-out is the split screen shots that lets your eyes decide which one is better then the other. Sometimes though, the picture quality isn't everything. They liked the WMV-HD image better but the DivX-HD produced a file five times faster and 50% smaller. That's worth something in our book.