Hi John (snap),
Just a quick thought that may help. Firstly, I'm assuming that you are importing AVCHD clips. If not, please ignore this advice as it applies only to AVCHD clips.
After connecting the camera to iMovie, rather than importing the clips, click Archive All at the bottom of the Import window that opens. In the Save As field, type a name for the archive. Choose where you want to save the archive, and then click Create.
Tip: Don’t save the archive inside the iMovie Events or iMovie Projects folder. This could make iMovie operate more slowly.
Having archived the clips using iMovie's Archive All feature, try importing them from the archive to an Event in iMovie. To do this, go to iMovie's menu and select File>Import>Camera Archive.
Possibly, iMovie will now import without any hiccups. The problem may be with the camera, rather than iMovie. Copying the camera contents (to an archive), rather than going through the full import process, may help smooth the way.
Another thought: The import problem may also be caused by a corrupt clip on the camera. On the camera, go through all the clips and check for any black (or blank) clips, possibly of short duration. Delete these from the camera. I'm assuming of course that you are not using a tape based camera, such as miniDV tapes. Now try importing to iMovie.
John
Message was edited by: John Cogdell