I just got the new Sony HDR-HC3 camcorder a shot some video at the San Diego Zoo. iMovie imported the clips throughout the night and now it says: Letterboxing....this may take a while. with a scrolling progress bar. This has been going on for 3-5 hours now! (some of the first 4-5 clips were shot in widescreen) Is my Powerbook (667mhz) stuck or is this normal behavior?