After a few previous blog posts on this topic, I’m glad to finally wrap it up. To import footage from the Sony HDR-UX1 into iMovie ’08, create a disk image using Apple’s Disk Utility, mount it, copy the entire contents of a Sony HDR-UX1 DVD to the image, and then launch iMovie ’08.
If you don’t have a PC around to read the data from the Sony HDR-UX1 and transfer it to your Mac, the ~$50 ReadDVD! program is said to enable your Mac to mount the Sony HDR-UX1.
All of this bother is somewhat ironic after learning that iMovie ’08 took the “HD” out of iMovie, but, now that I can get the AVCHD footage imported for editing, I’m done.