First professional video review of the Panasonic GH1 !

Here an interesting excerpt:

“The above helps illustrate a couple of things to do to improve image quality in AVCHD videos:

Subjects with large areas of relatively little detail (flat walls, sky, etc) will leave more video bandwidth available to record detail in parts of the image you’re more interested in. (For instance, Charlotte would have been rendered with much more detail if the setting here had been a paved parking lot with a flat concrete wall in the background.)
Unless you have to move quickly to track a fast-moving subject, you should always pan slowly when making videos. Most amateur videographers pan their cameras way too fast, making their videos hard to watch. With AVCHD, though, you pay a double penalty for this, as the rapidly-changing image content means loads of detail gets thrown away by the compression.”