Hello. I have some of the problems mentioned here with a MC-130 Everio camcorder. My problems begin with the thumbnails, as it takes a long and I get a crash after a while. Maybe I should try only with the first ones, as it was the only time I get something.
In my attempts to import the files, I tried to move some to my mac disc, but iMovie didn't import them.
After reading the thread, my idea is trying to import a few files each time and erase them from the camcorder.
To avoid crashes, maybe it would be possible to extract the files from the camcorder and leave a few, to import them quicker, and then moving the next batch to the camdcorder.
Anyway, if it was tedious work with hd camcorders and iMovie HD, iMovie 08 is a progress but still has to improve a lot.