You'll need to buy QuickTime Pro ($30 U.S.).
Keith Kolbo discusses this camera, it's shortcomings in Vegas and a workaround
in this article on his site.
Step 1
Open the file in QuickTime Pro. Go to File|Export and select Movie to MPEG-4 as the export type.
Click on the Options button.
Step 2
For Video Format, select Pass through.
In the box above Video Format, now pull down the list and select Audio.
Step 3
For the Audio Format choose AAC-LC and leave the defaults.
Select OK and then save the new movie. The file will now have an .mp4 extension and Vegas will find a bitrate for the audio and be happy.
I am guessing, but I bet that fixes it for other NLE's that handle AVCHD as well.
The other consideration when using the GO_HD files in Vegas is the frame rate. The GO_HD files are true 30fps. Most project and output templates for Vegas are the traditional 29.97 fps. Since this is also progressive video, Vegas interpolates the frame rate to 29.97 and that results in ghosted images. The key is simply making sure that you set your project properties to 30fps instead of the 29.97 and then make sure that you render our to 30 fps formats on the other end. Keeping it at 30fps will give you the best results. One note here, rendering to interlaced DV at 29.97 and showing it on an NTSC monitor looks fine. It is not noticeable until you are looking at it on a progressive monitor.
